1913/1/3: 010313 = 010:313 = each is palindrome
1913/1/3: 1313 = cyclic permutation symmetric
1913/1/3: 191313 = 191:313 = each is palindrome
1913/1/3: 3113 = palindrome
1913/1/7: 010713 = 01:07:13 = arthimetic series of increment 6
1913/1/9: 9113 = 91:13 = integer ratio of 7 to 1
1913/1/19: 011913 = 011:913 = integer ratio of 1 to 83
1913/1/30: 013013 = cyclic permutation symmetric
1913/1/30: 130130 = cyclic permutation symmetric
1913/1/31: 13131 = palindrome
1913/1/31: 31113 = palindrome
1913/2/3: 020313 = 020:313 = each is palindrome
1913/2/3: 191323 = 191:323 = each is palindrome
1913/2/5: 251913 = 25:19:13 = arthimetic series of increment -6
1913/2/5: 5213 = 52:13 = integer ratio of 4 to 1
1913/2/6: 1326 = 13:26 = integer ratio of 1 to 2
1913/2/6: 2613 = 26:13 = integer ratio of 2 to 1
1913/3/1: 010313 = 010:313 = each is palindrome
1913/3/1: 13031 = palindrome
1913/3/1: 1313 = cyclic permutation symmetric
1913/3/1: 1331 = palindrome
1913/3/1: 3113 = palindrome
1913/3/2: 020313 = 020:313 = each is palindrome
1913/3/3: 030313 = 030:313 = each is palindrome
1913/3/3: 191333 = 191:333 = each is palindrome
1913/3/4: 040313 = 040:313 = each is palindrome
1913/3/5: 050313 = 050:313 = each is palindrome
1913/3/6: 060313 = 060:313 = each is palindrome
1913/3/7: 070313 = 070:313 = each is palindrome
1913/3/8: 030813 = 03:08:13 = arthimetic series of increment 5
1913/3/8: 080313 = 080:313 = each is palindrome
1913/3/9: 090313 = 090:313 = each is palindrome
1913/3/9: 1339 = 13:39 = integer ratio of 1 to 3
1913/3/9: 3913 = 39:13 = integer ratio of 3 to 1
1913/3/10: 31013 = palindrome
1913/3/11: 31113 = palindrome
1913/3/12: 31213 = palindrome
1913/3/13: 31313 = palindrome
1913/3/14: 31413 = palindrome
1913/3/15: 31513 = palindrome
1913/3/16: 31613 = palindrome
1913/3/17: 031713 = 031:713 = integer ratio of 1 to 23
1913/3/17: 31713 = palindrome
1913/3/18: 31813 = palindrome
1913/3/19: 31913 = palindrome
1913/3/19: 3191913 = palindrome
1913/3/31: 13331 = palindrome
1913/3/31: 31313 = palindrome
1913/4/3: 040313 = 040:313 = each is palindrome
1913/4/3: 191343 = 191:343 = each is palindrome
1913/5/2: 1352 = 13:52 = integer ratio of 1 to 4
1913/5/2: 251913 = 25:19:13 = arthimetic series of increment -6
1913/5/2: 5213 = 52:13 = integer ratio of 4 to 1
1913/5/3: 050313 = 050:313 = each is palindrome
1913/5/3: 191353 = 191:353 = each is palindrome
1913/5/6: 6513 = 65:13 = integer ratio of 5 to 1
1913/5/7: 1357 = 1:3:5:7 = arthimetic series of increment 2
1913/5/9: 050913 = 05:09:13 = arthimetic series of increment 4
1913/5/20: 052013 = 052:013 = integer ratio of 4 to 1
1913/5/20: 130520 = 130:520 = integer ratio of 1 to 4
1913/5/31: 13531 = palindrome
1913/5/31: 31513 = palindrome
1913/6/2: 2613 = 26:13 = integer ratio of 2 to 1
1913/6/3: 060313 = 060:313 = each is palindrome
1913/6/3: 191363 = 191:363 = each is palindrome
1913/6/5: 1365 = 13:65 = integer ratio of 1 to 5
1913/6/5: 6513 = 65:13 = integer ratio of 5 to 1
1913/7/1: 010713 = 01:07:13 = arthimetic series of increment 6
1913/7/1: 130701 = 13:07:01 = arthimetic series of increment -6
1913/7/1: 19130701 = 19:13:07:01 = arthimetic series of increment -6
1913/7/3: 070313 = 070:313 = each is palindrome
1913/7/3: 191373 = 191:373 = each is palindrome
1913/7/8: 1378 = 13:78 = integer ratio of 1 to 6
1913/7/8: 7813 = 78:13 = integer ratio of 6 to 1
1913/7/10: 071013 = 07:10:13 = arthimetic series of increment 3
1913/7/12: 071213 = 071:213 = integer ratio of 1 to 3
1913/7/31: 13731 = palindrome
1913/7/31: 31713 = palindrome
1913/8/2: 191382 = 191:382 = integer ratio of 1 to 2
1913/8/3: 030813 = 03:08:13 = arthimetic series of increment 5
1913/8/3: 080313 = 080:313 = each is palindrome
1913/8/3: 130803 = 13:08:03 = arthimetic series of increment -5
1913/8/3: 191383 = 191:383 = each is palindrome
1913/8/7: 7813 = 78:13 = integer ratio of 6 to 1
1913/8/31: 13831 = palindrome
1913/8/31: 31813 = palindrome
1913/9/1: 1391 = 13:91 = integer ratio of 1 to 7
1913/9/1: 9113 = 91:13 = integer ratio of 7 to 1
1913/9/3: 090313 = 090:313 = each is palindrome
1913/9/3: 191393 = 191:393 = each is palindrome
1913/9/3: 3913 = 39:13 = integer ratio of 3 to 1
1913/9/5: 050913 = 05:09:13 = arthimetic series of increment 4
1913/9/5: 130905 = 13:09:05 = arthimetic series of increment -4
1913/9/10: 091013 = 091:013 = integer ratio of 7 to 1
1913/9/10: 130910 = 130:910 = integer ratio of 1 to 7
1913/9/11: 091113 = 09:11:13 = arthimetic series of increment 2
1913/10/1: 131001 = 131:001 = integer ratio of 131 to 1
1913/10/3: 31013 = palindrome
1913/10/7: 071013 = 07:10:13 = arthimetic series of increment 3
1913/10/7: 131007 = 13:10:07 = arthimetic series of increment -3
1913/10/9: 091013 = 091:013 = integer ratio of 7 to 1
1913/10/10: 131010 = 131:010 = each is palindrome
1913/10/13: 101313 = 101:313 = each is palindrome
1913/10/20: 131020 = 131:020 = each is palindrome
1913/10/22: 221013 = 221:013 = integer ratio of 17 to 1
1913/10/30: 131030 = 131:030 = each is palindrome
1913/11/1: 131101 = 131:101 = each is palindrome
1913/11/3: 31113 = palindrome
1913/11/9: 091113 = 09:11:13 = arthimetic series of increment 2
1913/11/9: 131109 = 13:11:09 = arthimetic series of increment -2
1913/11/11: 131111 = 131:111 = each is palindrome
1913/11/12: 111213 = 11:12:13 = arthimetic series of increment 1
1913/11/13: 111313 = 111:313 = each is palindrome
1913/11/21: 131121 = 131:121 = each is palindrome
1913/12/2: 131202 = 131:202 = each is palindrome
1913/12/3: 31213 = palindrome
1913/12/7: 071213 = 071:213 = integer ratio of 1 to 3
1913/12/11: 111213 = 11:12:13 = arthimetic series of increment 1
1913/12/11: 131211 = 13:12:11 = arthimetic series of increment -1
1913/12/12: 131212 = 131:212 = each is palindrome
1913/12/13: 121313 = 121:313 = each is palindrome
1913/12/22: 131222 = 131:222 = each is palindrome