Numbers n such that decimal expansion of n^2 contains no palindromic substring except single digits.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 16, 17, 18, 19, 23, 24, 25, 27, 28, 29, 31, 32, 33, 36
1 seqfan posts
Wed Sep 9 15:33:46 CEST 2009 [seqfan] Patterns in A052061?