1949/1/1: 111949 = 111:949 = each is palindrome
1949/1/2: 121949 = 121:949 = each is palindrome
1949/1/3: 131949 = 131:949 = each is palindrome
1949/1/4: 141949 = 141:949 = each is palindrome
1949/1/5: 151949 = 151:949 = each is palindrome
1949/1/6: 161949 = 161:949 = each is palindrome
1949/1/7: 010749 = 01:07:49 = geometric series of ratio 7
1949/1/7: 171949 = 171:949 = each is palindrome
1949/1/8: 181949 = 181:949 = each is palindrome
1949/1/9: 010949 = 010:949 = each is palindrome
1949/1/9: 191949 = 191:949 = each is palindrome
1949/1/16: 011649 = 011:649 = integer ratio of 1 to 59
1949/1/25: 012549 = 01:25:49 = arthimetic series of increment 24
1949/2/1: 121949 = 121:949 = each is palindrome
1949/2/9: 020949 = 020:949 = each is palindrome
1949/3/1: 131949 = 131:949 = each is palindrome
1949/3/9: 030949 = 030:949 = each is palindrome
1949/3/26: 032649 = 03:26:49 = arthimetic series of increment 23
1949/4/1: 141949 = 141:949 = each is palindrome
1949/4/9: 040949 = 040:949 = each is palindrome
1949/4/9: 4949 = cyclic permutation symmetric
1949/4/9: 9449 = palindrome
1949/4/14: 041449 = 04:14:49 = geometric series of ratio 3.5
1949/5/1: 151949 = 151:949 = each is palindrome
1949/5/9: 050949 = 050:949 = each is palindrome
1949/5/27: 052749 = 05:27:49 = arthimetic series of increment 22
1949/6/1: 161949 = 161:949 = each is palindrome
1949/6/9: 060949 = 060:949 = each is palindrome
1949/6/15: 061549 = 061:549 = integer ratio of 1 to 9
1949/7/1: 010749 = 01:07:49 = geometric series of ratio 7
1949/7/1: 171949 = 171:949 = each is palindrome
1949/7/1: 490701 = 49:07:01 = geometric series of ratio 0.142857142857143
1949/7/9: 070949 = 070:949 = each is palindrome
1949/7/9: 194979 = 19:49:79 = arthimetic series of increment 30
1949/7/28: 072849 = 07:28:49 = arthimetic series of increment 21
1949/8/1: 181949 = 181:949 = each is palindrome
1949/8/9: 080949 = 080:949 = each is palindrome
1949/8/9: 9849 = 98:49 = integer ratio of 2 to 1
1949/9/1: 010949 = 010:949 = each is palindrome
1949/9/1: 191949 = 191:949 = each is palindrome
1949/9/2: 020949 = 020:949 = each is palindrome
1949/9/3: 030949 = 030:949 = each is palindrome
1949/9/4: 040949 = 040:949 = each is palindrome
1949/9/4: 49094 = palindrome
1949/9/4: 4949 = cyclic permutation symmetric
1949/9/4: 4994 = palindrome
1949/9/4: 9449 = palindrome
1949/9/5: 050949 = 050:949 = each is palindrome
1949/9/6: 060949 = 060:949 = each is palindrome
1949/9/7: 070949 = 070:949 = each is palindrome
1949/9/8: 080949 = 080:949 = each is palindrome
1949/9/8: 4998 = 49:98 = integer ratio of 1 to 2
1949/9/8: 9849 = 98:49 = integer ratio of 2 to 1
1949/9/9: 090949 = 090:949 = each is palindrome
1949/9/21: 092149 = 09:21:49 = geometric series of ratio 2.33333333333333
1949/9/29: 092949 = 09:29:49 = arthimetic series of increment 20
1949/10/1: 491001 = 491:001 = integer ratio of 491 to 1
1949/10/19: 101949 = 101:949 = each is palindrome
1949/11/19: 111949 = 111:949 = each is palindrome
1949/11/30: 113049 = 11:30:49 = arthimetic series of increment 19
1949/12/19: 121949 = 121:949 = each is palindrome