1900/1/1: 000101 = up-down mirror symmetric
1900/1/1: 000101 = 00:01:01 = each is up-down mirror symmetric
1900/1/1: 000101 = 000:101 = each is left-right mirror symmetric
1900/1/1: 000101 = 000:101 = each is 180 deg rotationally symmetric
1900/1/1: 000101 = 000:101 = each is palindrome
1900/1/1: 000101 = 000:101 = each is up-down mirror symmetric
1900/1/1: 00011 = up-down mirror symmetric
1900/1/1: 00101 = up-down mirror symmetric
1900/1/1: 0011 = up-down mirror symmetric
1900/1/1: 0011 = 00:11 = each is left-right mirror symmetric
1900/1/1: 0011 = 00:11 = each is single digit
1900/1/1: 0011 = 00:11 = each is 180 deg rotationally symmetric
1900/1/1: 0011 = 00:11 = each is palindrome
1900/1/1: 0011 = 00:11 = each is up-down mirror symmetric
1900/1/1: 0011 = 00:11 = each is cyclic permutation symmetric
1900/1/1: 0101 = up-down mirror symmetric
1900/1/1: 0101 = cyclic permutation symmetric
1900/1/1: 0101 = 01:01 = each is up-down mirror symmetric
1900/1/1: 01010 = palindrome
1900/1/1: 01010 = left-right mirror symmetric
1900/1/1: 01010 = up-down mirror symmetric
1900/1/1: 01010 = 180 deg rotationally symmetric
1900/1/1: 010100 = up-down mirror symmetric
1900/1/1: 010100 = 01:01:00 = each is up-down mirror symmetric
1900/1/1: 010100 = 010:100 = integer ratio of 1 to 10
1900/1/1: 010100 = 010:100 = each is up-down mirror symmetric
1900/1/1: 011 = up-down mirror symmetric
1900/1/1: 0110 = palindrome
1900/1/1: 0110 = left-right mirror symmetric
1900/1/1: 0110 = up-down mirror symmetric
1900/1/1: 0110 = 180 deg rotationally symmetric
1900/1/1: 0110 = 01:10 = integer ratio of 1 to 10
1900/1/1: 0110 = 01:10 = each is up-down mirror symmetric
1900/1/1: 01100 = up-down mirror symmetric
1900/1/1: 1010 = up-down mirror symmetric
1900/1/1: 1010 = cyclic permutation symmetric
1900/1/1: 1010 = 10:10 = each is up-down mirror symmetric
1900/1/1: 10100 = up-down mirror symmetric
1900/1/1: 110 = up-down mirror symmetric
1900/1/1: 1100 = up-down mirror symmetric
1900/1/1: 1100 = 11:00 = each is left-right mirror symmetric
1900/1/1: 1100 = 11:00 = each is single digit
1900/1/1: 1100 = 11:00 = each is 180 deg rotationally symmetric
1900/1/1: 1100 = 11:00 = each is palindrome
1900/1/1: 1100 = 11:00 = each is up-down mirror symmetric
1900/1/1: 1100 = 11:00 = each is cyclic permutation symmetric
1900/1/2: 000102 = 00:01:02 = arthimetic series of increment 1
1900/1/2: 0102 = 01:02 = integer ratio of 1 to 2
1900/1/2: 010200 = 010:200 = integer ratio of 1 to 20
1900/1/2: 012 = 0:1:2 = arthimetic series of increment 1
1900/1/2: 0120 = 01:20 = integer ratio of 1 to 20
1900/1/2: 020100 = 02:01:00 = arthimetic series of increment -1
1900/1/2: 020100 = 020:100 = integer ratio of 1 to 5
1900/1/2: 0210 = 02:10 = integer ratio of 1 to 5
1900/1/2: 1020 = 10:20 = integer ratio of 1 to 2
1900/1/2: 2010 = 20:10 = integer ratio of 2 to 1
1900/1/2: 210 = 2:1:0 = arthimetic series of increment -1
1900/1/3: 0103 = 01:03 = integer ratio of 1 to 3
1900/1/3: 010300 = 010:300 = integer ratio of 1 to 30
1900/1/3: 0130 = 01:30 = integer ratio of 1 to 30
1900/1/3: 1030 = 10:30 = integer ratio of 1 to 3
1900/1/3: 3010 = 30:10 = integer ratio of 3 to 1
1900/1/4: 0104 = 01:04 = integer ratio of 1 to 4
1900/1/4: 010400 = 010:400 = integer ratio of 1 to 40
1900/1/4: 0140 = 01:40 = integer ratio of 1 to 40
1900/1/4: 1040 = 10:40 = integer ratio of 1 to 4
1900/1/4: 4010 = 40:10 = integer ratio of 4 to 1
1900/1/5: 0105 = 01:05 = integer ratio of 1 to 5
1900/1/5: 010500 = 010:500 = integer ratio of 1 to 50
1900/1/5: 0150 = 01:50 = integer ratio of 1 to 50
1900/1/5: 050100 = 050:100 = integer ratio of 1 to 2
1900/1/5: 0510 = 05:10 = integer ratio of 1 to 2
1900/1/5: 1050 = 10:50 = integer ratio of 1 to 5
1900/1/5: 5010 = 50:10 = integer ratio of 5 to 1
1900/1/6: 0106 = 01:06 = integer ratio of 1 to 6
1900/1/6: 010600 = 010:600 = integer ratio of 1 to 60
1900/1/6: 0160 = 01:60 = integer ratio of 1 to 60
1900/1/6: 1060 = 10:60 = integer ratio of 1 to 6
1900/1/6: 6010 = 60:10 = integer ratio of 6 to 1
1900/1/7: 0107 = 01:07 = integer ratio of 1 to 7
1900/1/7: 010700 = 010:700 = integer ratio of 1 to 70
1900/1/7: 0170 = 01:70 = integer ratio of 1 to 70
1900/1/7: 1070 = 10:70 = integer ratio of 1 to 7
1900/1/7: 7010 = 70:10 = integer ratio of 7 to 1
1900/1/8: 000108 = up-down mirror symmetric
1900/1/8: 000108 = 00:01:08 = each is up-down mirror symmetric
1900/1/8: 000108 = 000:108 = each is up-down mirror symmetric
1900/1/8: 00018 = up-down mirror symmetric
1900/1/8: 00108 = up-down mirror symmetric
1900/1/8: 0018 = up-down mirror symmetric
1900/1/8: 0018 = 00:18 = each is up-down mirror symmetric
1900/1/8: 0108 = up-down mirror symmetric
1900/1/8: 0108 = 01:08 = integer ratio of 1 to 8
1900/1/8: 0108 = 01:08 = each is up-down mirror symmetric
1900/1/8: 01080 = up-down mirror symmetric
1900/1/8: 010800 = up-down mirror symmetric
1900/1/8: 010800 = 01:08:00 = each is up-down mirror symmetric
1900/1/8: 010800 = 010:800 = integer ratio of 1 to 80
1900/1/8: 010800 = 010:800 = each is up-down mirror symmetric
1900/1/8: 018 = up-down mirror symmetric
1900/1/8: 0180 = up-down mirror symmetric
1900/1/8: 0180 = 01:80 = integer ratio of 1 to 80
1900/1/8: 0180 = 01:80 = each is up-down mirror symmetric
1900/1/8: 01800 = up-down mirror symmetric
1900/1/8: 08010 = up-down mirror symmetric
1900/1/8: 080100 = up-down mirror symmetric
1900/1/8: 080100 = 08:01:00 = each is up-down mirror symmetric
1900/1/8: 080100 = 080:100 = each is up-down mirror symmetric
1900/1/8: 0810 = up-down mirror symmetric
1900/1/8: 0810 = 08:10 = each is up-down mirror symmetric
1900/1/8: 08100 = up-down mirror symmetric
1900/1/8: 1080 = up-down mirror symmetric
1900/1/8: 1080 = 10:80 = integer ratio of 1 to 8
1900/1/8: 1080 = 10:80 = each is up-down mirror symmetric
1900/1/8: 10800 = up-down mirror symmetric
1900/1/8: 180 = up-down mirror symmetric
1900/1/8: 1800 = up-down mirror symmetric
1900/1/8: 1800 = 18:00 = each is up-down mirror symmetric
1900/1/8: 8010 = up-down mirror symmetric
1900/1/8: 8010 = 80:10 = integer ratio of 8 to 1
1900/1/8: 8010 = 80:10 = each is up-down mirror symmetric
1900/1/8: 80100 = up-down mirror symmetric
1900/1/8: 810 = up-down mirror symmetric
1900/1/8: 8100 = up-down mirror symmetric
1900/1/8: 8100 = 81:00 = each is up-down mirror symmetric
1900/1/9: 0109 = 01:09 = integer ratio of 1 to 9
1900/1/9: 010900 = 010:900 = integer ratio of 1 to 90
1900/1/9: 0190 = 01:90 = integer ratio of 1 to 90
1900/1/9: 1090 = 10:90 = integer ratio of 1 to 9
1900/1/9: 190019 = 190:019 = integer ratio of 10 to 1
1900/1/9: 9010 = 90:10 = integer ratio of 9 to 1
1900/1/10: 000110 = up-down mirror symmetric
1900/1/10: 000110 = 00:01:10 = each is up-down mirror symmetric
1900/1/10: 000110 = 000:110 = each is up-down mirror symmetric
1900/1/10: 00110 = up-down mirror symmetric
1900/1/10: 0110 = palindrome
1900/1/10: 0110 = left-right mirror symmetric
1900/1/10: 0110 = up-down mirror symmetric
1900/1/10: 0110 = 180 deg rotationally symmetric
1900/1/10: 0110 = 01:10 = integer ratio of 1 to 10
1900/1/10: 0110 = 01:10 = each is up-down mirror symmetric
1900/1/10: 01100 = up-down mirror symmetric
1900/1/10: 011000 = up-down mirror symmetric
1900/1/10: 011000 = 01:10:00 = each is up-down mirror symmetric
1900/1/10: 011000 = 011:000 = each is up-down mirror symmetric
1900/1/10: 10010 = up-down mirror symmetric
1900/1/10: 100100 = up-down mirror symmetric
1900/1/10: 100100 = cyclic permutation symmetric
1900/1/10: 100100 = 10:01:00 = each is up-down mirror symmetric
1900/1/10: 100100 = 100:100 = each is up-down mirror symmetric
1900/1/10: 1010 = up-down mirror symmetric
1900/1/10: 1010 = cyclic permutation symmetric
1900/1/10: 1010 = 10:10 = each is up-down mirror symmetric
1900/1/10: 10100 = up-down mirror symmetric
1900/1/10: 1100 = up-down mirror symmetric
1900/1/10: 1100 = 11:00 = each is left-right mirror symmetric
1900/1/10: 1100 = 11:00 = each is single digit
1900/1/10: 1100 = 11:00 = each is 180 deg rotationally symmetric
1900/1/10: 1100 = 11:00 = each is palindrome
1900/1/10: 1100 = 11:00 = each is up-down mirror symmetric
1900/1/10: 1100 = 11:00 = each is cyclic permutation symmetric
1900/1/10: 11000 = up-down mirror symmetric
1900/1/11: 000111 = up-down mirror symmetric
1900/1/11: 000111 = 00:01:11 = each is up-down mirror symmetric
1900/1/11: 000111 = 000:111 = each is left-right mirror symmetric
1900/1/11: 000111 = 000:111 = each is single digit
1900/1/11: 000111 = 000:111 = each is 180 deg rotationally symmetric
1900/1/11: 000111 = 000:111 = each is palindrome
1900/1/11: 000111 = 000:111 = each is up-down mirror symmetric
1900/1/11: 000111 = 000:111 = each is cyclic permutation symmetric
1900/1/11: 00111 = up-down mirror symmetric
1900/1/11: 0111 = up-down mirror symmetric
1900/1/11: 0111 = 01:11 = integer ratio of 1 to 11
1900/1/11: 0111 = 01:11 = each is up-down mirror symmetric
1900/1/11: 01110 = palindrome
1900/1/11: 01110 = left-right mirror symmetric
1900/1/11: 01110 = up-down mirror symmetric
1900/1/11: 01110 = 180 deg rotationally symmetric
1900/1/11: 011100 = up-down mirror symmetric
1900/1/11: 011100 = 01:11:00 = each is up-down mirror symmetric
1900/1/11: 011100 = 011:100 = each is up-down mirror symmetric
1900/1/11: 11010 = up-down mirror symmetric
1900/1/11: 110100 = up-down mirror symmetric
1900/1/11: 110100 = 11:01:00 = each is up-down mirror symmetric
1900/1/11: 110100 = 110:100 = each is up-down mirror symmetric
1900/1/11: 1110 = up-down mirror symmetric
1900/1/11: 1110 = 11:10 = each is up-down mirror symmetric
1900/1/11: 11100 = up-down mirror symmetric
1900/1/12: 0112 = 01:12 = integer ratio of 1 to 12
1900/1/13: 0113 = 01:13 = integer ratio of 1 to 13
1900/1/14: 0114 = 01:14 = integer ratio of 1 to 14
1900/1/15: 0115 = 01:15 = integer ratio of 1 to 15
1900/1/16: 0116 = 01:16 = integer ratio of 1 to 16
1900/1/17: 0117 = 01:17 = integer ratio of 1 to 17
1900/1/18: 000118 = up-down mirror symmetric
1900/1/18: 000118 = 00:01:18 = each is up-down mirror symmetric
1900/1/18: 000118 = 000:118 = each is up-down mirror symmetric
1900/1/18: 00118 = up-down mirror symmetric
1900/1/18: 0118 = up-down mirror symmetric
1900/1/18: 0118 = 01:18 = integer ratio of 1 to 18
1900/1/18: 0118 = 01:18 = each is up-down mirror symmetric
1900/1/18: 01180 = up-down mirror symmetric
1900/1/18: 011800 = up-down mirror symmetric
1900/1/18: 011800 = 01:18:00 = each is up-down mirror symmetric
1900/1/18: 011800 = 011:800 = each is up-down mirror symmetric
1900/1/18: 1180 = up-down mirror symmetric
1900/1/18: 1180 = 11:80 = each is up-down mirror symmetric
1900/1/18: 11800 = up-down mirror symmetric
1900/1/18: 18010 = up-down mirror symmetric
1900/1/18: 180100 = up-down mirror symmetric
1900/1/18: 180100 = 18:01:00 = each is up-down mirror symmetric
1900/1/18: 180100 = 180:100 = each is up-down mirror symmetric
1900/1/18: 1810 = up-down mirror symmetric
1900/1/18: 1810 = 18:10 = each is up-down mirror symmetric
1900/1/18: 18100 = up-down mirror symmetric
1900/1/19: 0119 = 01:19 = integer ratio of 1 to 19
1900/1/20: 0120 = 01:20 = integer ratio of 1 to 20
1900/1/20: 200100 = 200:100 = integer ratio of 2 to 1
1900/1/20: 2010 = 20:10 = integer ratio of 2 to 1
1900/1/21: 000121 = 000:121 = each is palindrome
1900/1/21: 0121 = 01:21 = integer ratio of 1 to 21
1900/1/21: 01210 = palindrome
1900/1/22: 0122 = 01:22 = integer ratio of 1 to 22
1900/1/23: 0123 = 0:1:2:3 = arthimetic series of increment 1
1900/1/23: 0123 = 01:23 = integer ratio of 1 to 23
1900/1/23: 012300 = 012:300 = integer ratio of 1 to 25
1900/1/24: 0124 = 01:24 = integer ratio of 1 to 24
1900/1/25: 0125 = 01:25 = integer ratio of 1 to 25
1900/1/26: 0126 = 01:26 = integer ratio of 1 to 26
1900/1/26: 012600 = 012:600 = integer ratio of 1 to 50
1900/1/26: 1260 = 12:60 = integer ratio of 1 to 5
1900/1/27: 0127 = 01:27 = integer ratio of 1 to 27
1900/1/28: 0128 = 01:28 = integer ratio of 1 to 28
1900/1/29: 0129 = 01:29 = integer ratio of 1 to 29
1900/1/29: 012900 = 012:900 = integer ratio of 1 to 75
1900/1/30: 0130 = 01:30 = integer ratio of 1 to 30
1900/1/30: 300100 = 300:100 = integer ratio of 3 to 1
1900/1/30: 3010 = 30:10 = integer ratio of 3 to 1
1900/1/31: 000131 = 000:131 = each is palindrome
1900/1/31: 0131 = 01:31 = integer ratio of 1 to 31
1900/1/31: 01310 = palindrome
1900/2/1: 010200 = 010:200 = integer ratio of 1 to 20
1900/2/1: 0120 = 01:20 = integer ratio of 1 to 20
1900/2/1: 0201 = 02:01 = integer ratio of 2 to 1
1900/2/1: 020100 = 02:01:00 = arthimetic series of increment -1
1900/2/1: 020100 = 020:100 = integer ratio of 1 to 5
1900/2/1: 0210 = 02:10 = integer ratio of 1 to 5
1900/2/1: 1020 = 10:20 = integer ratio of 1 to 2
1900/2/1: 2010 = 20:10 = integer ratio of 2 to 1
1900/2/1: 210 = 2:1:0 = arthimetic series of increment -1
1900/2/2: 000202 = 000:202 = each is palindrome
1900/2/2: 0022 = 00:22 = each is single digit
1900/2/2: 0022 = 00:22 = each is palindrome
1900/2/2: 0022 = 00:22 = each is cyclic permutation symmetric
1900/2/2: 0202 = cyclic permutation symmetric
1900/2/2: 02020 = palindrome
1900/2/2: 020200 = 020:200 = integer ratio of 1 to 10
1900/2/2: 0220 = palindrome
1900/2/2: 0220 = 02:20 = integer ratio of 1 to 10
1900/2/2: 2020 = cyclic permutation symmetric
1900/2/2: 2200 = 22:00 = each is single digit
1900/2/2: 2200 = 22:00 = each is palindrome
1900/2/2: 2200 = 22:00 = each is cyclic permutation symmetric
1900/2/3: 020300 = 020:300 = integer ratio of 1 to 15
1900/2/3: 0230 = 02:30 = integer ratio of 1 to 15
1900/2/4: 000204 = 00:02:04 = arthimetic series of increment 2
1900/2/4: 0204 = 02:04 = integer ratio of 1 to 2
1900/2/4: 020400 = 020:400 = integer ratio of 1 to 20
1900/2/4: 024 = 0:2:4 = arthimetic series of increment 2
1900/2/4: 0240 = 02:40 = integer ratio of 1 to 20
1900/2/4: 040200 = 04:02:00 = arthimetic series of increment -2
1900/2/4: 040200 = 040:200 = integer ratio of 1 to 5
1900/2/4: 0420 = 04:20 = integer ratio of 1 to 5
1900/2/4: 2040 = 20:40 = integer ratio of 1 to 2
1900/2/4: 4020 = 40:20 = integer ratio of 2 to 1
1900/2/4: 420 = 4:2:0 = arthimetic series of increment -2
1900/2/5: 020500 = 020:500 = integer ratio of 1 to 25
1900/2/5: 0250 = 02:50 = integer ratio of 1 to 25
1900/2/5: 050200 = 050:200 = integer ratio of 1 to 4
1900/2/5: 0520 = 05:20 = integer ratio of 1 to 4
1900/2/6: 0206 = 02:06 = integer ratio of 1 to 3
1900/2/6: 020600 = 020:600 = integer ratio of 1 to 30
1900/2/6: 0260 = 02:60 = integer ratio of 1 to 30
1900/2/6: 2060 = 20:60 = integer ratio of 1 to 3
1900/2/6: 6020 = 60:20 = integer ratio of 3 to 1
1900/2/7: 020700 = 020:700 = integer ratio of 1 to 35
1900/2/7: 0270 = 02:70 = integer ratio of 1 to 35
1900/2/8: 0208 = 02:08 = integer ratio of 1 to 4
1900/2/8: 020800 = 020:800 = integer ratio of 1 to 40
1900/2/8: 0280 = 02:80 = integer ratio of 1 to 40
1900/2/8: 2080 = 20:80 = integer ratio of 1 to 4
1900/2/8: 8020 = 80:20 = integer ratio of 4 to 1
1900/2/9: 020900 = 020:900 = integer ratio of 1 to 45
1900/2/9: 0290 = 02:90 = integer ratio of 1 to 45
1900/2/10: 0210 = 02:10 = integer ratio of 1 to 5
1900/2/10: 100200 = 100:200 = integer ratio of 1 to 2
1900/2/10: 1020 = 10:20 = integer ratio of 1 to 2
1900/2/12: 000212 = 000:212 = each is palindrome
1900/2/12: 0212 = 02:12 = integer ratio of 1 to 6
1900/2/12: 02120 = palindrome
1900/2/14: 0214 = 02:14 = integer ratio of 1 to 7
1900/2/16: 0216 = 02:16 = integer ratio of 1 to 8
1900/2/18: 0218 = 02:18 = integer ratio of 1 to 9
1900/2/20: 0220 = palindrome
1900/2/20: 0220 = 02:20 = integer ratio of 1 to 10
1900/2/20: 200200 = cyclic permutation symmetric
1900/2/20: 2020 = cyclic permutation symmetric
1900/2/20: 2200 = 22:00 = each is single digit
1900/2/20: 2200 = 22:00 = each is palindrome
1900/2/20: 2200 = 22:00 = each is cyclic permutation symmetric
1900/2/22: 000222 = 000:222 = each is single digit
1900/2/22: 000222 = 000:222 = each is palindrome
1900/2/22: 000222 = 000:222 = each is cyclic permutation symmetric
1900/2/22: 0222 = 02:22 = integer ratio of 1 to 11
1900/2/22: 02220 = palindrome
1900/2/24: 0224 = 02:24 = integer ratio of 1 to 12
1900/2/26: 0226 = 02:26 = integer ratio of 1 to 13
1900/3/1: 010300 = 010:300 = integer ratio of 1 to 30
1900/3/1: 0130 = 01:30 = integer ratio of 1 to 30
1900/3/1: 0301 = 03:01 = integer ratio of 3 to 1
1900/3/1: 1030 = 10:30 = integer ratio of 1 to 3
1900/3/1: 3010 = 30:10 = integer ratio of 3 to 1
1900/3/2: 020300 = 020:300 = integer ratio of 1 to 15
1900/3/2: 0230 = 02:30 = integer ratio of 1 to 15
1900/3/3: 000303 = 000:303 = each is palindrome
1900/3/3: 0033 = 00:33 = each is single digit
1900/3/3: 0033 = 00:33 = each is palindrome
1900/3/3: 0033 = 00:33 = each is cyclic permutation symmetric
1900/3/3: 0303 = cyclic permutation symmetric
1900/3/3: 03030 = palindrome
1900/3/3: 030300 = 030:300 = integer ratio of 1 to 10
1900/3/3: 0330 = palindrome
1900/3/3: 0330 = 03:30 = integer ratio of 1 to 10
1900/3/3: 3030 = cyclic permutation symmetric
1900/3/3: 3300 = 33:00 = each is single digit
1900/3/3: 3300 = 33:00 = each is palindrome
1900/3/3: 3300 = 33:00 = each is cyclic permutation symmetric
1900/3/5: 050300 = 050:300 = integer ratio of 1 to 6
1900/3/5: 0530 = 05:30 = integer ratio of 1 to 6
1900/3/6: 000306 = 00:03:06 = arthimetic series of increment 3
1900/3/6: 0306 = 03:06 = integer ratio of 1 to 2
1900/3/6: 030600 = 030:600 = integer ratio of 1 to 20
1900/3/6: 036 = 0:3:6 = arthimetic series of increment 3
1900/3/6: 0360 = 03:60 = integer ratio of 1 to 20
1900/3/6: 060300 = 06:03:00 = arthimetic series of increment -3
1900/3/6: 060300 = 060:300 = integer ratio of 1 to 5
1900/3/6: 0630 = 06:30 = integer ratio of 1 to 5
1900/3/6: 3060 = 30:60 = integer ratio of 1 to 2
1900/3/6: 6030 = 60:30 = integer ratio of 2 to 1
1900/3/6: 630 = 6:3:0 = arthimetic series of increment -3
1900/3/8: 190038 = 190:038 = integer ratio of 5 to 1
1900/3/8: 381900 = 38:19:00 = arthimetic series of increment -19
1900/3/9: 0309 = 03:09 = integer ratio of 1 to 3
1900/3/9: 030900 = 030:900 = integer ratio of 1 to 30
1900/3/9: 0390 = 03:90 = integer ratio of 1 to 30
1900/3/9: 3090 = 30:90 = integer ratio of 1 to 3
1900/3/9: 9030 = 90:30 = integer ratio of 3 to 1
1900/3/10: 100300 = 100:300 = integer ratio of 1 to 3
1900/3/10: 1030 = 10:30 = integer ratio of 1 to 3
1900/3/12: 0312 = 03:12 = integer ratio of 1 to 4
1900/3/13: 000313 = 000:313 = each is palindrome
1900/3/13: 03130 = palindrome
1900/3/15: 0315 = 03:15 = integer ratio of 1 to 5
1900/3/15: 150300 = 150:300 = integer ratio of 1 to 2
1900/3/15: 1530 = 15:30 = integer ratio of 1 to 2
1900/3/18: 0318 = 03:18 = integer ratio of 1 to 6
1900/3/21: 0321 = 03:21 = integer ratio of 1 to 7
1900/3/21: 3210 = 3:2:1:0 = arthimetic series of increment -1
1900/3/23: 000323 = 000:323 = each is palindrome
1900/3/23: 03230 = palindrome
1900/3/24: 0324 = 03:24 = integer ratio of 1 to 8
1900/3/27: 0327 = 03:27 = integer ratio of 1 to 9
1900/3/28: 032800 = 032:800 = integer ratio of 1 to 25
1900/3/30: 0330 = palindrome
1900/3/30: 0330 = 03:30 = integer ratio of 1 to 10
1900/3/30: 300300 = cyclic permutation symmetric
1900/3/30: 3030 = cyclic permutation symmetric
1900/3/30: 3300 = 33:00 = each is single digit
1900/3/30: 3300 = 33:00 = each is palindrome
1900/3/30: 3300 = 33:00 = each is cyclic permutation symmetric
1900/4/1: 010400 = 010:400 = integer ratio of 1 to 40
1900/4/1: 0140 = 01:40 = integer ratio of 1 to 40
1900/4/1: 0401 = 04:01 = integer ratio of 4 to 1
1900/4/1: 1040 = 10:40 = integer ratio of 1 to 4
1900/4/1: 4010 = 40:10 = integer ratio of 4 to 1
1900/4/2: 020400 = 020:400 = integer ratio of 1 to 20
1900/4/2: 0240 = 02:40 = integer ratio of 1 to 20
1900/4/2: 0402 = 04:02 = integer ratio of 2 to 1
1900/4/2: 040200 = 04:02:00 = arthimetic series of increment -2
1900/4/2: 040200 = 040:200 = integer ratio of 1 to 5
1900/4/2: 0420 = 04:20 = integer ratio of 1 to 5
1900/4/2: 2040 = 20:40 = integer ratio of 1 to 2
1900/4/2: 4020 = 40:20 = integer ratio of 2 to 1
1900/4/2: 420 = 4:2:0 = arthimetic series of increment -2
1900/4/4: 000404 = 000:404 = each is palindrome
1900/4/4: 0044 = 00:44 = each is single digit
1900/4/4: 0044 = 00:44 = each is palindrome
1900/4/4: 0044 = 00:44 = each is cyclic permutation symmetric
1900/4/4: 0404 = cyclic permutation symmetric
1900/4/4: 04040 = palindrome
1900/4/4: 040400 = 040:400 = integer ratio of 1 to 10
1900/4/4: 0440 = palindrome
1900/4/4: 0440 = 04:40 = integer ratio of 1 to 10
1900/4/4: 4040 = cyclic permutation symmetric
1900/4/4: 4400 = 44:00 = each is single digit
1900/4/4: 4400 = 44:00 = each is palindrome
1900/4/4: 4400 = 44:00 = each is cyclic permutation symmetric
1900/4/5: 050400 = 050:400 = integer ratio of 1 to 8
1900/4/5: 0540 = 05:40 = integer ratio of 1 to 8
1900/4/6: 040600 = 040:600 = integer ratio of 1 to 15
1900/4/6: 0460 = 04:60 = integer ratio of 1 to 15
1900/4/8: 000408 = 00:04:08 = arthimetic series of increment 4
1900/4/8: 0408 = 04:08 = integer ratio of 1 to 2
1900/4/8: 040800 = 040:800 = integer ratio of 1 to 20
1900/4/8: 048 = 0:4:8 = arthimetic series of increment 4
1900/4/8: 0480 = 04:80 = integer ratio of 1 to 20
1900/4/8: 080400 = 08:04:00 = arthimetic series of increment -4
1900/4/8: 080400 = 080:400 = integer ratio of 1 to 5
1900/4/8: 0840 = 08:40 = integer ratio of 1 to 5
1900/4/8: 4080 = 40:80 = integer ratio of 1 to 2
1900/4/8: 8040 = 80:40 = integer ratio of 2 to 1
1900/4/8: 840 = 8:4:0 = arthimetic series of increment -4
1900/4/10: 100400 = 100:400 = integer ratio of 1 to 4
1900/4/10: 1040 = 10:40 = integer ratio of 1 to 4
1900/4/12: 0412 = 04:12 = integer ratio of 1 to 3
1900/4/14: 000414 = 000:414 = each is palindrome
1900/4/14: 04140 = palindrome
1900/4/16: 0416 = 04:16 = integer ratio of 1 to 4
1900/4/20: 0420 = 04:20 = integer ratio of 1 to 5
1900/4/20: 200400 = 200:400 = integer ratio of 1 to 2
1900/4/20: 2040 = 20:40 = integer ratio of 1 to 2
1900/4/24: 000424 = 000:424 = each is palindrome
1900/4/24: 0424 = 04:24 = integer ratio of 1 to 6
1900/4/24: 04240 = palindrome
1900/4/28: 0428 = 04:28 = integer ratio of 1 to 7
1900/5/1: 010500 = 010:500 = integer ratio of 1 to 50
1900/5/1: 0150 = 01:50 = integer ratio of 1 to 50
1900/5/1: 0501 = 05:01 = integer ratio of 5 to 1
1900/5/1: 050100 = 050:100 = integer ratio of 1 to 2
1900/5/1: 0510 = 05:10 = integer ratio of 1 to 2
1900/5/1: 1050 = 10:50 = integer ratio of 1 to 5
1900/5/1: 5010 = 50:10 = integer ratio of 5 to 1
1900/5/2: 020500 = 020:500 = integer ratio of 1 to 25
1900/5/2: 0250 = 02:50 = integer ratio of 1 to 25
1900/5/2: 050200 = 050:200 = integer ratio of 1 to 4
1900/5/2: 0520 = 05:20 = integer ratio of 1 to 4
1900/5/3: 050300 = 050:300 = integer ratio of 1 to 6
1900/5/3: 0530 = 05:30 = integer ratio of 1 to 6
1900/5/4: 050400 = 050:400 = integer ratio of 1 to 8
1900/5/4: 0540 = 05:40 = integer ratio of 1 to 8
1900/5/5: 000505 = 000:505 = each is palindrome
1900/5/5: 0055 = 00:55 = each is single digit
1900/5/5: 0055 = 00:55 = each is palindrome
1900/5/5: 0055 = 00:55 = each is cyclic permutation symmetric
1900/5/5: 0505 = cyclic permutation symmetric
1900/5/5: 05050 = palindrome
1900/5/5: 050500 = 050:500 = integer ratio of 1 to 10
1900/5/5: 0550 = palindrome
1900/5/5: 0550 = 05:50 = integer ratio of 1 to 10
1900/5/5: 5050 = cyclic permutation symmetric
1900/5/5: 5500 = 55:00 = each is single digit
1900/5/5: 5500 = 55:00 = each is palindrome
1900/5/5: 5500 = 55:00 = each is cyclic permutation symmetric
1900/5/6: 050600 = 050:600 = integer ratio of 1 to 12
1900/5/6: 0560 = 05:60 = integer ratio of 1 to 12
1900/5/7: 050700 = 050:700 = integer ratio of 1 to 14
1900/5/7: 0570 = 05:70 = integer ratio of 1 to 14
1900/5/8: 050800 = 050:800 = integer ratio of 1 to 16
1900/5/8: 0580 = 05:80 = integer ratio of 1 to 16
1900/5/9: 050900 = 050:900 = integer ratio of 1 to 18
1900/5/9: 0590 = 05:90 = integer ratio of 1 to 18
1900/5/10: 000510 = 00:05:10 = arthimetic series of increment 5
1900/5/10: 0510 = 05:10 = integer ratio of 1 to 2
1900/5/10: 100500 = 10:05:00 = arthimetic series of increment -5
1900/5/10: 100500 = 100:500 = integer ratio of 1 to 5
1900/5/10: 1050 = 10:50 = integer ratio of 1 to 5
1900/5/15: 000515 = 000:515 = each is palindrome
1900/5/15: 0515 = 05:15 = integer ratio of 1 to 3
1900/5/15: 05150 = palindrome
1900/5/20: 0520 = 05:20 = integer ratio of 1 to 4
1900/5/25: 000525 = 000:525 = each is palindrome
1900/5/25: 0525 = 05:25 = integer ratio of 1 to 5
1900/5/25: 05250 = palindrome
1900/5/25: 250500 = 250:500 = integer ratio of 1 to 2
1900/5/25: 2550 = 25:50 = integer ratio of 1 to 2
1900/5/30: 0530 = 05:30 = integer ratio of 1 to 6
1900/6/1: 010600 = 010:600 = integer ratio of 1 to 60
1900/6/1: 0160 = 01:60 = integer ratio of 1 to 60
1900/6/1: 0601 = 06:01 = integer ratio of 6 to 1
1900/6/1: 1060 = 10:60 = integer ratio of 1 to 6
1900/6/1: 1900061 = 180 deg rotationally symmetric
1900/6/1: 190061 = 180 deg rotationally symmetric
1900/6/1: 6010 = 60:10 = integer ratio of 6 to 1
1900/6/2: 020600 = 020:600 = integer ratio of 1 to 30
1900/6/2: 0260 = 02:60 = integer ratio of 1 to 30
1900/6/2: 0602 = 06:02 = integer ratio of 3 to 1
1900/6/2: 2060 = 20:60 = integer ratio of 1 to 3
1900/6/2: 6020 = 60:20 = integer ratio of 3 to 1
1900/6/3: 030600 = 030:600 = integer ratio of 1 to 20
1900/6/3: 0360 = 03:60 = integer ratio of 1 to 20
1900/6/3: 0603 = 06:03 = integer ratio of 2 to 1
1900/6/3: 060300 = 06:03:00 = arthimetic series of increment -3
1900/6/3: 060300 = 060:300 = integer ratio of 1 to 5
1900/6/3: 0630 = 06:30 = integer ratio of 1 to 5
1900/6/3: 3060 = 30:60 = integer ratio of 1 to 2
1900/6/3: 6030 = 60:30 = integer ratio of 2 to 1
1900/6/3: 630 = 6:3:0 = arthimetic series of increment -3
1900/6/4: 040600 = 040:600 = integer ratio of 1 to 15
1900/6/4: 0460 = 04:60 = integer ratio of 1 to 15
1900/6/5: 050600 = 050:600 = integer ratio of 1 to 12
1900/6/5: 0560 = 05:60 = integer ratio of 1 to 12
1900/6/6: 000606 = 000:606 = each is palindrome
1900/6/6: 0066 = 00:66 = each is single digit
1900/6/6: 0066 = 00:66 = each is palindrome
1900/6/6: 0066 = 00:66 = each is cyclic permutation symmetric
1900/6/6: 0606 = cyclic permutation symmetric
1900/6/6: 06060 = palindrome
1900/6/6: 060600 = 060:600 = integer ratio of 1 to 10
1900/6/6: 0660 = palindrome
1900/6/6: 0660 = 06:60 = integer ratio of 1 to 10
1900/6/6: 6060 = cyclic permutation symmetric
1900/6/6: 6600 = 66:00 = each is single digit
1900/6/6: 6600 = 66:00 = each is palindrome
1900/6/6: 6600 = 66:00 = each is cyclic permutation symmetric
1900/6/9: 000609 = 000:609 = each is 180 deg rotationally symmetric
1900/6/9: 0069 = 00:69 = each is 180 deg rotationally symmetric
1900/6/9: 06090 = 180 deg rotationally symmetric
1900/6/9: 060900 = 060:900 = integer ratio of 1 to 15
1900/6/9: 0690 = 180 deg rotationally symmetric
1900/6/9: 0690 = 06:90 = integer ratio of 1 to 15
1900/6/9: 09060 = 180 deg rotationally symmetric
1900/6/9: 0960 = 180 deg rotationally symmetric
1900/6/9: 6900 = 69:00 = each is 180 deg rotationally symmetric
1900/6/9: 9600 = 96:00 = each is 180 deg rotationally symmetric
1900/6/10: 100600 = 100:600 = integer ratio of 1 to 6
1900/6/10: 1060 = 10:60 = integer ratio of 1 to 6
1900/6/12: 000612 = 00:06:12 = arthimetic series of increment 6
1900/6/12: 0612 = 06:12 = integer ratio of 1 to 2
1900/6/12: 120600 = 12:06:00 = arthimetic series of increment -6
1900/6/12: 120600 = 120:600 = integer ratio of 1 to 5
1900/6/12: 1260 = 12:60 = integer ratio of 1 to 5
1900/6/15: 150600 = 150:600 = integer ratio of 1 to 4
1900/6/15: 1560 = 15:60 = integer ratio of 1 to 4
1900/6/16: 000616 = 000:616 = each is palindrome
1900/6/16: 06160 = palindrome
1900/6/18: 0618 = 06:18 = integer ratio of 1 to 3
1900/6/19: 000619 = 000:619 = each is 180 deg rotationally symmetric
1900/6/19: 06190 = 180 deg rotationally symmetric
1900/6/20: 200600 = 200:600 = integer ratio of 1 to 3
1900/6/20: 2060 = 20:60 = integer ratio of 1 to 3
1900/6/24: 0624 = 06:24 = integer ratio of 1 to 4
1900/6/26: 000626 = 000:626 = each is palindrome
1900/6/26: 06260 = palindrome
1900/6/30: 0630 = 06:30 = integer ratio of 1 to 5
1900/6/30: 300600 = 300:600 = integer ratio of 1 to 2
1900/6/30: 3060 = 30:60 = integer ratio of 1 to 2
1900/7/1: 010700 = 010:700 = integer ratio of 1 to 70
1900/7/1: 0170 = 01:70 = integer ratio of 1 to 70
1900/7/1: 0701 = 07:01 = integer ratio of 7 to 1
1900/7/1: 1070 = 10:70 = integer ratio of 1 to 7
1900/7/1: 7010 = 70:10 = integer ratio of 7 to 1
1900/7/2: 020700 = 020:700 = integer ratio of 1 to 35
1900/7/2: 0270 = 02:70 = integer ratio of 1 to 35
1900/7/5: 050700 = 050:700 = integer ratio of 1 to 14
1900/7/5: 0570 = 05:70 = integer ratio of 1 to 14
1900/7/7: 000707 = 000:707 = each is palindrome
1900/7/7: 0077 = 00:77 = each is single digit
1900/7/7: 0077 = 00:77 = each is palindrome
1900/7/7: 0077 = 00:77 = each is cyclic permutation symmetric
1900/7/7: 0707 = cyclic permutation symmetric
1900/7/7: 07070 = palindrome
1900/7/7: 070700 = 070:700 = integer ratio of 1 to 10
1900/7/7: 0770 = palindrome
1900/7/7: 0770 = 07:70 = integer ratio of 1 to 10
1900/7/7: 7070 = cyclic permutation symmetric
1900/7/7: 7700 = 77:00 = each is single digit
1900/7/7: 7700 = 77:00 = each is palindrome
1900/7/7: 7700 = 77:00 = each is cyclic permutation symmetric
1900/7/10: 100700 = 100:700 = integer ratio of 1 to 7
1900/7/10: 1070 = 10:70 = integer ratio of 1 to 7
1900/7/14: 000714 = 00:07:14 = arthimetic series of increment 7
1900/7/14: 0714 = 07:14 = integer ratio of 1 to 2
1900/7/14: 140700 = 14:07:00 = arthimetic series of increment -7
1900/7/14: 140700 = 140:700 = integer ratio of 1 to 5
1900/7/14: 1470 = 14:70 = integer ratio of 1 to 5
1900/7/17: 000717 = 000:717 = each is palindrome
1900/7/17: 07170 = palindrome
1900/7/21: 0721 = 07:21 = integer ratio of 1 to 3
1900/7/27: 000727 = 000:727 = each is palindrome
1900/7/27: 07270 = palindrome
1900/7/28: 0728 = 07:28 = integer ratio of 1 to 4
1900/8/1: 000801 = up-down mirror symmetric
1900/8/1: 000801 = 00:08:01 = each is up-down mirror symmetric
1900/8/1: 000801 = 000:801 = each is up-down mirror symmetric
1900/8/1: 00081 = up-down mirror symmetric
1900/8/1: 00801 = up-down mirror symmetric
1900/8/1: 0081 = up-down mirror symmetric
1900/8/1: 0081 = 00:81 = each is up-down mirror symmetric
1900/8/1: 01080 = up-down mirror symmetric
1900/8/1: 010800 = up-down mirror symmetric
1900/8/1: 010800 = 01:08:00 = each is up-down mirror symmetric
1900/8/1: 010800 = 010:800 = integer ratio of 1 to 80
1900/8/1: 010800 = 010:800 = each is up-down mirror symmetric
1900/8/1: 0180 = up-down mirror symmetric
1900/8/1: 0180 = 01:80 = integer ratio of 1 to 80
1900/8/1: 0180 = 01:80 = each is up-down mirror symmetric
1900/8/1: 01800 = up-down mirror symmetric
1900/8/1: 0801 = up-down mirror symmetric
1900/8/1: 0801 = 08:01 = integer ratio of 8 to 1
1900/8/1: 0801 = 08:01 = each is up-down mirror symmetric
1900/8/1: 08010 = up-down mirror symmetric
1900/8/1: 080100 = up-down mirror symmetric
1900/8/1: 080100 = 08:01:00 = each is up-down mirror symmetric
1900/8/1: 080100 = 080:100 = each is up-down mirror symmetric
1900/8/1: 081 = up-down mirror symmetric
1900/8/1: 0810 = up-down mirror symmetric
1900/8/1: 0810 = 08:10 = each is up-down mirror symmetric
1900/8/1: 08100 = up-down mirror symmetric
1900/8/1: 1080 = up-down mirror symmetric
1900/8/1: 1080 = 10:80 = integer ratio of 1 to 8
1900/8/1: 1080 = 10:80 = each is up-down mirror symmetric
1900/8/1: 10800 = up-down mirror symmetric
1900/8/1: 180 = up-down mirror symmetric
1900/8/1: 1800 = up-down mirror symmetric
1900/8/1: 1800 = 18:00 = each is up-down mirror symmetric
1900/8/1: 8010 = up-down mirror symmetric
1900/8/1: 8010 = 80:10 = integer ratio of 8 to 1
1900/8/1: 8010 = 80:10 = each is up-down mirror symmetric
1900/8/1: 80100 = up-down mirror symmetric
1900/8/1: 810 = up-down mirror symmetric
1900/8/1: 8100 = up-down mirror symmetric
1900/8/1: 8100 = 81:00 = each is up-down mirror symmetric
1900/8/2: 020800 = 020:800 = integer ratio of 1 to 40
1900/8/2: 0280 = 02:80 = integer ratio of 1 to 40
1900/8/2: 0802 = 08:02 = integer ratio of 4 to 1
1900/8/2: 2080 = 20:80 = integer ratio of 1 to 4
1900/8/2: 8020 = 80:20 = integer ratio of 4 to 1
1900/8/3: 381900 = 38:19:00 = arthimetic series of increment -19
1900/8/4: 040800 = 040:800 = integer ratio of 1 to 20
1900/8/4: 0480 = 04:80 = integer ratio of 1 to 20
1900/8/4: 0804 = 08:04 = integer ratio of 2 to 1
1900/8/4: 080400 = 08:04:00 = arthimetic series of increment -4
1900/8/4: 080400 = 080:400 = integer ratio of 1 to 5
1900/8/4: 0840 = 08:40 = integer ratio of 1 to 5
1900/8/4: 4080 = 40:80 = integer ratio of 1 to 2
1900/8/4: 8040 = 80:40 = integer ratio of 2 to 1
1900/8/4: 840 = 8:4:0 = arthimetic series of increment -4
1900/8/5: 050800 = 050:800 = integer ratio of 1 to 16
1900/8/5: 0580 = 05:80 = integer ratio of 1 to 16
1900/8/8: 000808 = up-down mirror symmetric
1900/8/8: 000808 = 00:08:08 = each is up-down mirror symmetric
1900/8/8: 000808 = 000:808 = each is left-right mirror symmetric
1900/8/8: 000808 = 000:808 = each is palindrome
1900/8/8: 000808 = 000:808 = each is up-down mirror symmetric
1900/8/8: 00088 = up-down mirror symmetric
1900/8/8: 00808 = up-down mirror symmetric
1900/8/8: 0088 = up-down mirror symmetric
1900/8/8: 0088 = 00:88 = each is left-right mirror symmetric
1900/8/8: 0088 = 00:88 = each is single digit
1900/8/8: 0088 = 00:88 = each is palindrome
1900/8/8: 0088 = 00:88 = each is up-down mirror symmetric
1900/8/8: 0088 = 00:88 = each is cyclic permutation symmetric
1900/8/8: 0808 = up-down mirror symmetric
1900/8/8: 0808 = cyclic permutation symmetric
1900/8/8: 0808 = 08:08 = each is up-down mirror symmetric
1900/8/8: 08080 = palindrome
1900/8/8: 08080 = left-right mirror symmetric
1900/8/8: 08080 = up-down mirror symmetric
1900/8/8: 080800 = up-down mirror symmetric
1900/8/8: 080800 = 08:08:00 = each is up-down mirror symmetric
1900/8/8: 080800 = 080:800 = integer ratio of 1 to 10
1900/8/8: 080800 = 080:800 = each is up-down mirror symmetric
1900/8/8: 088 = up-down mirror symmetric
1900/8/8: 0880 = palindrome
1900/8/8: 0880 = left-right mirror symmetric
1900/8/8: 0880 = up-down mirror symmetric
1900/8/8: 0880 = 08:80 = integer ratio of 1 to 10
1900/8/8: 0880 = 08:80 = each is up-down mirror symmetric
1900/8/8: 08800 = up-down mirror symmetric
1900/8/8: 8080 = up-down mirror symmetric
1900/8/8: 8080 = cyclic permutation symmetric
1900/8/8: 8080 = 80:80 = each is up-down mirror symmetric
1900/8/8: 80800 = up-down mirror symmetric
1900/8/8: 880 = up-down mirror symmetric
1900/8/8: 8800 = up-down mirror symmetric
1900/8/8: 8800 = 88:00 = each is left-right mirror symmetric
1900/8/8: 8800 = 88:00 = each is single digit
1900/8/8: 8800 = 88:00 = each is palindrome
1900/8/8: 8800 = 88:00 = each is up-down mirror symmetric
1900/8/8: 8800 = 88:00 = each is cyclic permutation symmetric
1900/8/10: 000810 = up-down mirror symmetric
1900/8/10: 000810 = 00:08:10 = each is up-down mirror symmetric
1900/8/10: 000810 = 000:810 = each is up-down mirror symmetric
1900/8/10: 00810 = up-down mirror symmetric
1900/8/10: 0810 = up-down mirror symmetric
1900/8/10: 0810 = 08:10 = each is up-down mirror symmetric
1900/8/10: 08100 = up-down mirror symmetric
1900/8/10: 081000 = up-down mirror symmetric
1900/8/10: 081000 = 08:10:00 = each is up-down mirror symmetric
1900/8/10: 081000 = 081:000 = each is up-down mirror symmetric
1900/8/10: 10080 = up-down mirror symmetric
1900/8/10: 100800 = up-down mirror symmetric
1900/8/10: 100800 = 10:08:00 = each is up-down mirror symmetric
1900/8/10: 100800 = 100:800 = integer ratio of 1 to 8
1900/8/10: 100800 = 100:800 = each is up-down mirror symmetric
1900/8/10: 1080 = up-down mirror symmetric
1900/8/10: 1080 = 10:80 = integer ratio of 1 to 8
1900/8/10: 1080 = 10:80 = each is up-down mirror symmetric
1900/8/10: 10800 = up-down mirror symmetric
1900/8/10: 8100 = up-down mirror symmetric
1900/8/10: 8100 = 81:00 = each is up-down mirror symmetric
1900/8/10: 81000 = up-down mirror symmetric
1900/8/11: 000811 = up-down mirror symmetric
1900/8/11: 000811 = 00:08:11 = each is up-down mirror symmetric
1900/8/11: 000811 = 000:811 = each is up-down mirror symmetric
1900/8/11: 00811 = up-down mirror symmetric
1900/8/11: 0811 = up-down mirror symmetric
1900/8/11: 0811 = 08:11 = each is up-down mirror symmetric
1900/8/11: 08110 = up-down mirror symmetric
1900/8/11: 081100 = up-down mirror symmetric
1900/8/11: 081100 = 08:11:00 = each is up-down mirror symmetric
1900/8/11: 081100 = 081:100 = each is up-down mirror symmetric
1900/8/11: 11080 = up-down mirror symmetric
1900/8/11: 110800 = up-down mirror symmetric
1900/8/11: 110800 = 11:08:00 = each is up-down mirror symmetric
1900/8/11: 110800 = 110:800 = each is up-down mirror symmetric
1900/8/11: 1180 = up-down mirror symmetric
1900/8/11: 1180 = 11:80 = each is up-down mirror symmetric
1900/8/11: 11800 = up-down mirror symmetric
1900/8/11: 8110 = up-down mirror symmetric
1900/8/11: 8110 = 81:10 = each is up-down mirror symmetric
1900/8/11: 81100 = up-down mirror symmetric
1900/8/16: 000816 = 00:08:16 = arthimetic series of increment 8
1900/8/16: 0816 = 08:16 = integer ratio of 1 to 2
1900/8/16: 160800 = 16:08:00 = arthimetic series of increment -8
1900/8/16: 160800 = 160:800 = integer ratio of 1 to 5
1900/8/16: 1680 = 16:80 = integer ratio of 1 to 5
1900/8/18: 000818 = up-down mirror symmetric
1900/8/18: 000818 = 00:08:18 = each is up-down mirror symmetric
1900/8/18: 000818 = 000:818 = each is left-right mirror symmetric
1900/8/18: 000818 = 000:818 = each is palindrome
1900/8/18: 000818 = 000:818 = each is up-down mirror symmetric
1900/8/18: 00818 = up-down mirror symmetric
1900/8/18: 0818 = up-down mirror symmetric
1900/8/18: 0818 = 08:18 = each is up-down mirror symmetric
1900/8/18: 08180 = palindrome
1900/8/18: 08180 = left-right mirror symmetric
1900/8/18: 08180 = up-down mirror symmetric
1900/8/18: 081800 = up-down mirror symmetric
1900/8/18: 081800 = 08:18:00 = each is up-down mirror symmetric
1900/8/18: 081800 = 081:800 = each is up-down mirror symmetric
1900/8/18: 18080 = up-down mirror symmetric
1900/8/18: 180800 = up-down mirror symmetric
1900/8/18: 180800 = 18:08:00 = each is up-down mirror symmetric
1900/8/18: 180800 = 180:800 = each is up-down mirror symmetric
1900/8/18: 1880 = up-down mirror symmetric
1900/8/18: 1880 = 18:80 = each is up-down mirror symmetric
1900/8/18: 18800 = up-down mirror symmetric
1900/8/18: 8180 = up-down mirror symmetric
1900/8/18: 8180 = 81:80 = each is up-down mirror symmetric
1900/8/18: 81800 = up-down mirror symmetric
1900/8/20: 200800 = 200:800 = integer ratio of 1 to 4
1900/8/20: 2080 = 20:80 = integer ratio of 1 to 4
1900/8/24: 0824 = 08:24 = integer ratio of 1 to 3
1900/8/28: 000828 = 000:828 = each is palindrome
1900/8/28: 08280 = palindrome
1900/9/1: 010900 = 010:900 = integer ratio of 1 to 90
1900/9/1: 0190 = 01:90 = integer ratio of 1 to 90
1900/9/1: 0901 = 09:01 = integer ratio of 9 to 1
1900/9/1: 1090 = 10:90 = integer ratio of 1 to 9
1900/9/1: 1900091 = palindrome
1900/9/1: 190091 = palindrome
1900/9/1: 9010 = 90:10 = integer ratio of 9 to 1
1900/9/2: 020900 = 020:900 = integer ratio of 1 to 45
1900/9/2: 0290 = 02:90 = integer ratio of 1 to 45
1900/9/3: 030900 = 030:900 = integer ratio of 1 to 30
1900/9/3: 0390 = 03:90 = integer ratio of 1 to 30
1900/9/3: 0903 = 09:03 = integer ratio of 3 to 1
1900/9/3: 3090 = 30:90 = integer ratio of 1 to 3
1900/9/3: 9030 = 90:30 = integer ratio of 3 to 1
1900/9/5: 050900 = 050:900 = integer ratio of 1 to 18
1900/9/5: 0590 = 05:90 = integer ratio of 1 to 18
1900/9/5: 190095 = 190:095 = integer ratio of 2 to 1
1900/9/6: 000906 = 000:906 = each is 180 deg rotationally symmetric
1900/9/6: 0096 = 00:96 = each is 180 deg rotationally symmetric
1900/9/6: 06090 = 180 deg rotationally symmetric
1900/9/6: 060900 = 060:900 = integer ratio of 1 to 15
1900/9/6: 0690 = 180 deg rotationally symmetric
1900/9/6: 0690 = 06:90 = integer ratio of 1 to 15
1900/9/6: 09060 = 180 deg rotationally symmetric
1900/9/6: 0960 = 180 deg rotationally symmetric
1900/9/6: 6900 = 69:00 = each is 180 deg rotationally symmetric
1900/9/6: 9600 = 96:00 = each is 180 deg rotationally symmetric
1900/9/9: 000909 = 000:909 = each is palindrome
1900/9/9: 0099 = 00:99 = each is single digit
1900/9/9: 0099 = 00:99 = each is palindrome
1900/9/9: 0099 = 00:99 = each is cyclic permutation symmetric
1900/9/9: 0909 = cyclic permutation symmetric
1900/9/9: 09090 = palindrome
1900/9/9: 090900 = 090:900 = integer ratio of 1 to 10
1900/9/9: 0990 = palindrome
1900/9/9: 0990 = 09:90 = integer ratio of 1 to 10
1900/9/9: 9090 = cyclic permutation symmetric
1900/9/9: 9900 = 99:00 = each is single digit
1900/9/9: 9900 = 99:00 = each is palindrome
1900/9/9: 9900 = 99:00 = each is cyclic permutation symmetric
1900/9/10: 100900 = 100:900 = integer ratio of 1 to 9
1900/9/10: 1090 = 10:90 = integer ratio of 1 to 9
1900/9/15: 150900 = 150:900 = integer ratio of 1 to 6
1900/9/15: 1590 = 15:90 = integer ratio of 1 to 6
1900/9/16: 000916 = 000:916 = each is 180 deg rotationally symmetric
1900/9/16: 09160 = 180 deg rotationally symmetric
1900/9/18: 000918 = 00:09:18 = arthimetic series of increment 9
1900/9/18: 0918 = 09:18 = integer ratio of 1 to 2
1900/9/18: 180900 = 18:09:00 = arthimetic series of increment -9
1900/9/18: 180900 = 180:900 = integer ratio of 1 to 5
1900/9/18: 1890 = 18:90 = integer ratio of 1 to 5
1900/9/19: 000919 = 000:919 = each is palindrome
1900/9/19: 09190 = palindrome
1900/9/27: 0927 = 09:27 = integer ratio of 1 to 3
1900/9/29: 000929 = 000:929 = each is palindrome
1900/9/29: 09290 = palindrome
1900/9/30: 300900 = 300:900 = integer ratio of 1 to 3
1900/9/30: 3090 = 30:90 = integer ratio of 1 to 3
1900/10/1: 001001 = up-down mirror symmetric
1900/10/1: 001001 = cyclic permutation symmetric
1900/10/1: 001001 = 00:10:01 = each is up-down mirror symmetric
1900/10/1: 001001 = 001:001 = each is up-down mirror symmetric
1900/10/1: 00101 = up-down mirror symmetric
1900/10/1: 01001 = up-down mirror symmetric
1900/10/1: 0101 = up-down mirror symmetric
1900/10/1: 0101 = cyclic permutation symmetric
1900/10/1: 0101 = 01:01 = each is up-down mirror symmetric
1900/10/1: 01100 = up-down mirror symmetric
1900/10/1: 011000 = up-down mirror symmetric
1900/10/1: 011000 = 01:10:00 = each is up-down mirror symmetric
1900/10/1: 011000 = 011:000 = each is up-down mirror symmetric
1900/10/1: 10010 = up-down mirror symmetric
1900/10/1: 100100 = up-down mirror symmetric
1900/10/1: 100100 = cyclic permutation symmetric
1900/10/1: 100100 = 10:01:00 = each is up-down mirror symmetric
1900/10/1: 100100 = 100:100 = each is up-down mirror symmetric
1900/10/1: 1010 = up-down mirror symmetric
1900/10/1: 1010 = cyclic permutation symmetric
1900/10/1: 1010 = 10:10 = each is up-down mirror symmetric
1900/10/1: 10100 = up-down mirror symmetric
1900/10/1: 1100 = up-down mirror symmetric
1900/10/1: 1100 = 11:00 = each is left-right mirror symmetric
1900/10/1: 1100 = 11:00 = each is single digit
1900/10/1: 1100 = 11:00 = each is 180 deg rotationally symmetric
1900/10/1: 1100 = 11:00 = each is palindrome
1900/10/1: 1100 = 11:00 = each is up-down mirror symmetric
1900/10/1: 1100 = 11:00 = each is cyclic permutation symmetric
1900/10/1: 11000 = up-down mirror symmetric
1900/10/2: 001002 = 001:002 = integer ratio of 1 to 2
1900/10/2: 0102 = 01:02 = integer ratio of 1 to 2
1900/10/2: 100200 = 100:200 = integer ratio of 1 to 2
1900/10/2: 1020 = 10:20 = integer ratio of 1 to 2
1900/10/3: 001003 = 001:003 = integer ratio of 1 to 3
1900/10/3: 0103 = 01:03 = integer ratio of 1 to 3
1900/10/3: 100300 = 100:300 = integer ratio of 1 to 3
1900/10/3: 1030 = 10:30 = integer ratio of 1 to 3
1900/10/4: 001004 = 001:004 = integer ratio of 1 to 4
1900/10/4: 0104 = 01:04 = integer ratio of 1 to 4
1900/10/4: 100400 = 100:400 = integer ratio of 1 to 4
1900/10/4: 1040 = 10:40 = integer ratio of 1 to 4
1900/10/5: 001005 = 001:005 = integer ratio of 1 to 5
1900/10/5: 0105 = 01:05 = integer ratio of 1 to 5
1900/10/5: 100500 = 10:05:00 = arthimetic series of increment -5
1900/10/5: 100500 = 100:500 = integer ratio of 1 to 5
1900/10/5: 1050 = 10:50 = integer ratio of 1 to 5
1900/10/6: 001006 = 001:006 = integer ratio of 1 to 6
1900/10/6: 0106 = 01:06 = integer ratio of 1 to 6
1900/10/6: 100600 = 100:600 = integer ratio of 1 to 6
1900/10/6: 1060 = 10:60 = integer ratio of 1 to 6
1900/10/7: 001007 = 001:007 = integer ratio of 1 to 7
1900/10/7: 0107 = 01:07 = integer ratio of 1 to 7
1900/10/7: 100700 = 100:700 = integer ratio of 1 to 7
1900/10/7: 1070 = 10:70 = integer ratio of 1 to 7
1900/10/8: 001008 = up-down mirror symmetric
1900/10/8: 001008 = 00:10:08 = each is up-down mirror symmetric
1900/10/8: 001008 = 001:008 = integer ratio of 1 to 8
1900/10/8: 001008 = 001:008 = each is up-down mirror symmetric
1900/10/8: 00108 = up-down mirror symmetric
1900/10/8: 01008 = up-down mirror symmetric
1900/10/8: 0108 = up-down mirror symmetric
1900/10/8: 0108 = 01:08 = integer ratio of 1 to 8
1900/10/8: 0108 = 01:08 = each is up-down mirror symmetric
1900/10/8: 08100 = up-down mirror symmetric
1900/10/8: 081000 = up-down mirror symmetric
1900/10/8: 081000 = 08:10:00 = each is up-down mirror symmetric
1900/10/8: 081000 = 081:000 = each is up-down mirror symmetric
1900/10/8: 10080 = up-down mirror symmetric
1900/10/8: 100800 = up-down mirror symmetric
1900/10/8: 100800 = 10:08:00 = each is up-down mirror symmetric
1900/10/8: 100800 = 100:800 = integer ratio of 1 to 8
1900/10/8: 100800 = 100:800 = each is up-down mirror symmetric
1900/10/8: 1080 = up-down mirror symmetric
1900/10/8: 1080 = 10:80 = integer ratio of 1 to 8
1900/10/8: 1080 = 10:80 = each is up-down mirror symmetric
1900/10/8: 10800 = up-down mirror symmetric
1900/10/8: 8100 = up-down mirror symmetric
1900/10/8: 8100 = 81:00 = each is up-down mirror symmetric
1900/10/8: 81000 = up-down mirror symmetric
1900/10/9: 001009 = 001:009 = integer ratio of 1 to 9
1900/10/9: 0109 = 01:09 = integer ratio of 1 to 9
1900/10/9: 100900 = 100:900 = integer ratio of 1 to 9
1900/10/9: 1090 = 10:90 = integer ratio of 1 to 9
1900/10/10: 001010 = up-down mirror symmetric
1900/10/10: 001010 = 00:10:10 = each is up-down mirror symmetric
1900/10/10: 001010 = 001:010 = integer ratio of 1 to 10
1900/10/10: 001010 = 001:010 = each is up-down mirror symmetric
1900/10/10: 01010 = palindrome
1900/10/10: 01010 = left-right mirror symmetric
1900/10/10: 01010 = up-down mirror symmetric
1900/10/10: 01010 = 180 deg rotationally symmetric
1900/10/10: 10100 = up-down mirror symmetric
1900/10/10: 101000 = up-down mirror symmetric
1900/10/10: 101000 = 10:10:00 = each is up-down mirror symmetric
1900/10/10: 101000 = 101:000 = each is left-right mirror symmetric
1900/10/10: 101000 = 101:000 = each is 180 deg rotationally symmetric
1900/10/10: 101000 = 101:000 = each is palindrome
1900/10/10: 101000 = 101:000 = each is up-down mirror symmetric
1900/10/11: 001011 = up-down mirror symmetric
1900/10/11: 001011 = 00:10:11 = each is up-down mirror symmetric
1900/10/11: 001011 = 001:011 = integer ratio of 1 to 11
1900/10/11: 001011 = 001:011 = each is up-down mirror symmetric
1900/10/11: 01011 = up-down mirror symmetric
1900/10/11: 10110 = up-down mirror symmetric
1900/10/11: 101100 = up-down mirror symmetric
1900/10/11: 101100 = 10:11:00 = each is up-down mirror symmetric
1900/10/11: 101100 = 101:100 = each is up-down mirror symmetric
1900/10/11: 11100 = up-down mirror symmetric
1900/10/11: 111000 = up-down mirror symmetric
1900/10/11: 111000 = 11:10:00 = each is up-down mirror symmetric
1900/10/11: 111000 = 111:000 = each is left-right mirror symmetric
1900/10/11: 111000 = 111:000 = each is single digit
1900/10/11: 111000 = 111:000 = each is 180 deg rotationally symmetric
1900/10/11: 111000 = 111:000 = each is palindrome
1900/10/11: 111000 = 111:000 = each is up-down mirror symmetric
1900/10/11: 111000 = 111:000 = each is cyclic permutation symmetric
1900/10/12: 001012 = 001:012 = integer ratio of 1 to 12
1900/10/12: 121000 = 121:000 = each is palindrome
1900/10/13: 001013 = 001:013 = integer ratio of 1 to 13
1900/10/13: 131000 = 131:000 = each is palindrome
1900/10/14: 001014 = 001:014 = integer ratio of 1 to 14
1900/10/14: 141000 = 141:000 = each is palindrome
1900/10/15: 001015 = 001:015 = integer ratio of 1 to 15
1900/10/15: 151000 = 151:000 = each is palindrome
1900/10/16: 001016 = 001:016 = integer ratio of 1 to 16
1900/10/16: 161000 = 161:000 = each is palindrome
1900/10/17: 001017 = 001:017 = integer ratio of 1 to 17
1900/10/17: 171000 = 171:000 = each is palindrome
1900/10/18: 001018 = up-down mirror symmetric
1900/10/18: 001018 = 00:10:18 = each is up-down mirror symmetric
1900/10/18: 001018 = 001:018 = integer ratio of 1 to 18
1900/10/18: 001018 = 001:018 = each is up-down mirror symmetric
1900/10/18: 01018 = up-down mirror symmetric
1900/10/18: 10180 = up-down mirror symmetric
1900/10/18: 101800 = up-down mirror symmetric
1900/10/18: 101800 = 10:18:00 = each is up-down mirror symmetric
1900/10/18: 101800 = 101:800 = each is up-down mirror symmetric
1900/10/18: 18100 = up-down mirror symmetric
1900/10/18: 181000 = up-down mirror symmetric
1900/10/18: 181000 = 18:10:00 = each is up-down mirror symmetric
1900/10/18: 181000 = 181:000 = each is left-right mirror symmetric
1900/10/18: 181000 = 181:000 = each is palindrome
1900/10/18: 181000 = 181:000 = each is up-down mirror symmetric
1900/10/19: 001019 = 001:019 = integer ratio of 1 to 19
1900/10/19: 191000 = 191:000 = each is palindrome
1900/10/20: 001020 = 00:10:20 = arthimetic series of increment 10
1900/10/20: 001020 = 001:020 = integer ratio of 1 to 20
1900/10/20: 201000 = 20:10:00 = arthimetic series of increment -10
1900/10/21: 001021 = 001:021 = integer ratio of 1 to 21
1900/10/22: 001022 = 001:022 = integer ratio of 1 to 22
1900/10/23: 001023 = 001:023 = integer ratio of 1 to 23
1900/10/24: 001024 = 001:024 = integer ratio of 1 to 24
1900/10/25: 001025 = 001:025 = integer ratio of 1 to 25
1900/10/26: 001026 = 001:026 = integer ratio of 1 to 26
1900/10/27: 001027 = 001:027 = integer ratio of 1 to 27
1900/10/28: 001028 = 001:028 = integer ratio of 1 to 28
1900/10/29: 001029 = 001:029 = integer ratio of 1 to 29
1900/10/30: 001030 = 001:030 = integer ratio of 1 to 30
1900/10/31: 001031 = 001:031 = integer ratio of 1 to 31
1900/11/1: 001101 = up-down mirror symmetric
1900/11/1: 001101 = 00:11:01 = each is up-down mirror symmetric
1900/11/1: 001101 = 001:101 = integer ratio of 1 to 101
1900/11/1: 001101 = 001:101 = each is up-down mirror symmetric
1900/11/1: 00111 = up-down mirror symmetric
1900/11/1: 01101 = up-down mirror symmetric
1900/11/1: 0111 = up-down mirror symmetric
1900/11/1: 0111 = 01:11 = integer ratio of 1 to 11
1900/11/1: 0111 = 01:11 = each is up-down mirror symmetric
1900/11/1: 01110 = palindrome
1900/11/1: 01110 = left-right mirror symmetric
1900/11/1: 01110 = up-down mirror symmetric
1900/11/1: 01110 = 180 deg rotationally symmetric
1900/11/1: 011100 = up-down mirror symmetric
1900/11/1: 011100 = 01:11:00 = each is up-down mirror symmetric
1900/11/1: 011100 = 011:100 = each is up-down mirror symmetric
1900/11/1: 11010 = up-down mirror symmetric
1900/11/1: 110100 = up-down mirror symmetric
1900/11/1: 110100 = 11:01:00 = each is up-down mirror symmetric
1900/11/1: 110100 = 110:100 = each is up-down mirror symmetric
1900/11/1: 1110 = up-down mirror symmetric
1900/11/1: 1110 = 11:10 = each is up-down mirror symmetric
1900/11/1: 11100 = up-down mirror symmetric
1900/11/2: 001102 = 001:102 = integer ratio of 1 to 102
1900/11/2: 0112 = 01:12 = integer ratio of 1 to 12
1900/11/3: 001103 = 001:103 = integer ratio of 1 to 103
1900/11/3: 0113 = 01:13 = integer ratio of 1 to 13
1900/11/4: 001104 = 001:104 = integer ratio of 1 to 104
1900/11/4: 0114 = 01:14 = integer ratio of 1 to 14
1900/11/5: 001105 = 001:105 = integer ratio of 1 to 105
1900/11/5: 0115 = 01:15 = integer ratio of 1 to 15
1900/11/6: 001106 = 001:106 = integer ratio of 1 to 106
1900/11/6: 0116 = 01:16 = integer ratio of 1 to 16
1900/11/7: 001107 = 001:107 = integer ratio of 1 to 107
1900/11/7: 0117 = 01:17 = integer ratio of 1 to 17
1900/11/8: 001108 = up-down mirror symmetric
1900/11/8: 001108 = 00:11:08 = each is up-down mirror symmetric
1900/11/8: 001108 = 001:108 = integer ratio of 1 to 108
1900/11/8: 001108 = 001:108 = each is up-down mirror symmetric
1900/11/8: 00118 = up-down mirror symmetric
1900/11/8: 01108 = up-down mirror symmetric
1900/11/8: 0118 = up-down mirror symmetric
1900/11/8: 0118 = 01:18 = integer ratio of 1 to 18
1900/11/8: 0118 = 01:18 = each is up-down mirror symmetric
1900/11/8: 08110 = up-down mirror symmetric
1900/11/8: 081100 = up-down mirror symmetric
1900/11/8: 081100 = 08:11:00 = each is up-down mirror symmetric
1900/11/8: 081100 = 081:100 = each is up-down mirror symmetric
1900/11/8: 11080 = up-down mirror symmetric
1900/11/8: 110800 = up-down mirror symmetric
1900/11/8: 110800 = 11:08:00 = each is up-down mirror symmetric
1900/11/8: 110800 = 110:800 = each is up-down mirror symmetric
1900/11/8: 1180 = up-down mirror symmetric
1900/11/8: 1180 = 11:80 = each is up-down mirror symmetric
1900/11/8: 11800 = up-down mirror symmetric
1900/11/8: 8110 = up-down mirror symmetric
1900/11/8: 8110 = 81:10 = each is up-down mirror symmetric
1900/11/8: 81100 = up-down mirror symmetric
1900/11/9: 001109 = 001:109 = integer ratio of 1 to 109
1900/11/9: 0119 = 01:19 = integer ratio of 1 to 19
1900/11/10: 001110 = up-down mirror symmetric
1900/11/10: 001110 = 00:11:10 = each is up-down mirror symmetric
1900/11/10: 001110 = 001:110 = integer ratio of 1 to 110
1900/11/10: 001110 = 001:110 = each is up-down mirror symmetric
1900/11/10: 01110 = palindrome
1900/11/10: 01110 = left-right mirror symmetric
1900/11/10: 01110 = up-down mirror symmetric
1900/11/10: 01110 = 180 deg rotationally symmetric
1900/11/10: 10110 = up-down mirror symmetric
1900/11/10: 101100 = up-down mirror symmetric
1900/11/10: 101100 = 10:11:00 = each is up-down mirror symmetric
1900/11/10: 101100 = 101:100 = each is up-down mirror symmetric
1900/11/10: 11100 = up-down mirror symmetric
1900/11/10: 111000 = up-down mirror symmetric
1900/11/10: 111000 = 11:10:00 = each is up-down mirror symmetric
1900/11/10: 111000 = 111:000 = each is left-right mirror symmetric
1900/11/10: 111000 = 111:000 = each is single digit
1900/11/10: 111000 = 111:000 = each is 180 deg rotationally symmetric
1900/11/10: 111000 = 111:000 = each is palindrome
1900/11/10: 111000 = 111:000 = each is up-down mirror symmetric
1900/11/10: 111000 = 111:000 = each is cyclic permutation symmetric
1900/11/11: 001111 = up-down mirror symmetric
1900/11/11: 001111 = 00:11:11 = each is left-right mirror symmetric
1900/11/11: 001111 = 00:11:11 = each is single digit
1900/11/11: 001111 = 00:11:11 = each is 180 deg rotationally symmetric
1900/11/11: 001111 = 00:11:11 = each is palindrome
1900/11/11: 001111 = 00:11:11 = each is up-down mirror symmetric
1900/11/11: 001111 = 00:11:11 = each is cyclic permutation symmetric
1900/11/11: 001111 = 001:111 = integer ratio of 1 to 111
1900/11/11: 001111 = 001:111 = each is up-down mirror symmetric
1900/11/11: 01111 = up-down mirror symmetric
1900/11/11: 11110 = up-down mirror symmetric
1900/11/11: 111100 = up-down mirror symmetric
1900/11/11: 111100 = 11:11:00 = each is left-right mirror symmetric
1900/11/11: 111100 = 11:11:00 = each is single digit
1900/11/11: 111100 = 11:11:00 = each is 180 deg rotationally symmetric
1900/11/11: 111100 = 11:11:00 = each is palindrome
1900/11/11: 111100 = 11:11:00 = each is up-down mirror symmetric
1900/11/11: 111100 = 11:11:00 = each is cyclic permutation symmetric
1900/11/11: 111100 = 111:100 = each is up-down mirror symmetric
1900/11/12: 001112 = 001:112 = integer ratio of 1 to 112
1900/11/13: 001113 = 001:113 = integer ratio of 1 to 113
1900/11/14: 001114 = 001:114 = integer ratio of 1 to 114
1900/11/15: 001115 = 001:115 = integer ratio of 1 to 115
1900/11/16: 001116 = 001:116 = integer ratio of 1 to 116
1900/11/17: 001117 = 001:117 = integer ratio of 1 to 117
1900/11/18: 001118 = up-down mirror symmetric
1900/11/18: 001118 = 00:11:18 = each is up-down mirror symmetric
1900/11/18: 001118 = 001:118 = integer ratio of 1 to 118
1900/11/18: 001118 = 001:118 = each is up-down mirror symmetric
1900/11/18: 01118 = up-down mirror symmetric
1900/11/18: 11180 = up-down mirror symmetric
1900/11/18: 111800 = up-down mirror symmetric
1900/11/18: 111800 = 11:18:00 = each is up-down mirror symmetric
1900/11/18: 111800 = 111:800 = each is up-down mirror symmetric
1900/11/18: 18110 = up-down mirror symmetric
1900/11/18: 181100 = up-down mirror symmetric
1900/11/18: 181100 = 18:11:00 = each is up-down mirror symmetric
1900/11/18: 181100 = 181:100 = each is up-down mirror symmetric
1900/11/19: 001119 = 001:119 = integer ratio of 1 to 119
1900/11/20: 001120 = 001:120 = integer ratio of 1 to 120
1900/11/21: 001121 = 001:121 = integer ratio of 1 to 121
1900/11/22: 001122 = 00:11:22 = arthimetic series of increment 11
1900/11/22: 001122 = 00:11:22 = each is single digit
1900/11/22: 001122 = 00:11:22 = each is palindrome
1900/11/22: 001122 = 00:11:22 = each is cyclic permutation symmetric
1900/11/22: 001122 = 001:122 = integer ratio of 1 to 122
1900/11/22: 112200 = 11:22:00 = each is single digit
1900/11/22: 112200 = 11:22:00 = each is palindrome
1900/11/22: 112200 = 11:22:00 = each is cyclic permutation symmetric
1900/11/22: 221100 = 22:11:00 = arthimetic series of increment -11
1900/11/22: 221100 = 22:11:00 = each is single digit
1900/11/22: 221100 = 22:11:00 = each is palindrome
1900/11/22: 221100 = 22:11:00 = each is cyclic permutation symmetric
1900/11/23: 001123 = 001:123 = integer ratio of 1 to 123
1900/11/24: 001124 = 001:124 = integer ratio of 1 to 124
1900/11/25: 001125 = 001:125 = integer ratio of 1 to 125
1900/11/26: 001126 = 001:126 = integer ratio of 1 to 126
1900/11/27: 001127 = 001:127 = integer ratio of 1 to 127
1900/11/28: 001128 = 001:128 = integer ratio of 1 to 128
1900/11/29: 001129 = 001:129 = integer ratio of 1 to 129
1900/11/30: 001130 = 001:130 = integer ratio of 1 to 130
1900/12/1: 001201 = 001:201 = integer ratio of 1 to 201
1900/12/1: 0121 = 01:21 = integer ratio of 1 to 21
1900/12/2: 001202 = 001:202 = integer ratio of 1 to 202
1900/12/2: 0122 = 01:22 = integer ratio of 1 to 22
1900/12/2: 02120 = palindrome
1900/12/3: 001203 = 001:203 = integer ratio of 1 to 203
1900/12/3: 0123 = 0:1:2:3 = arthimetic series of increment 1
1900/12/3: 0123 = 01:23 = integer ratio of 1 to 23
1900/12/4: 001204 = 001:204 = integer ratio of 1 to 204
1900/12/4: 0124 = 01:24 = integer ratio of 1 to 24
1900/12/5: 001205 = 001:205 = integer ratio of 1 to 205
1900/12/5: 0125 = 01:25 = integer ratio of 1 to 25
1900/12/6: 001206 = 001:206 = integer ratio of 1 to 206
1900/12/6: 0126 = 01:26 = integer ratio of 1 to 26
1900/12/6: 120600 = 12:06:00 = arthimetic series of increment -6
1900/12/6: 120600 = 120:600 = integer ratio of 1 to 5
1900/12/6: 1260 = 12:60 = integer ratio of 1 to 5
1900/12/7: 001207 = 001:207 = integer ratio of 1 to 207
1900/12/7: 0127 = 01:27 = integer ratio of 1 to 27
1900/12/8: 001208 = 001:208 = integer ratio of 1 to 208
1900/12/8: 0128 = 01:28 = integer ratio of 1 to 28
1900/12/9: 001209 = 001:209 = integer ratio of 1 to 209
1900/12/9: 0129 = 01:29 = integer ratio of 1 to 29
1900/12/10: 001210 = 001:210 = integer ratio of 1 to 210
1900/12/10: 01210 = palindrome
1900/12/10: 121000 = 121:000 = each is palindrome
1900/12/11: 001211 = 001:211 = integer ratio of 1 to 211
1900/12/12: 001212 = 001:212 = integer ratio of 1 to 212
1900/12/13: 001213 = 001:213 = integer ratio of 1 to 213
1900/12/14: 001214 = 001:214 = integer ratio of 1 to 214
1900/12/15: 001215 = 001:215 = integer ratio of 1 to 215
1900/12/16: 001216 = 001:216 = integer ratio of 1 to 216
1900/12/17: 001217 = 001:217 = integer ratio of 1 to 217
1900/12/18: 001218 = 001:218 = integer ratio of 1 to 218
1900/12/19: 001219 = 001:219 = integer ratio of 1 to 219
1900/12/20: 001220 = 001:220 = integer ratio of 1 to 220
1900/12/21: 001221 = 001:221 = integer ratio of 1 to 221
1900/12/22: 001222 = 001:222 = integer ratio of 1 to 222
1900/12/23: 001223 = 001:223 = integer ratio of 1 to 223
1900/12/24: 001224 = 00:12:24 = arthimetic series of increment 12
1900/12/24: 001224 = 001:224 = integer ratio of 1 to 224
1900/12/24: 241200 = 24:12:00 = arthimetic series of increment -12
1900/12/25: 001225 = 001:225 = integer ratio of 1 to 225
1900/12/26: 001226 = 001:226 = integer ratio of 1 to 226
1900/12/27: 001227 = 001:227 = integer ratio of 1 to 227
1900/12/28: 001228 = 001:228 = integer ratio of 1 to 228
1900/12/29: 001229 = 001:229 = integer ratio of 1 to 229
1900/12/30: 001230 = 001:230 = integer ratio of 1 to 230
1900/12/31: 001231 = 001:231 = integer ratio of 1 to 231