1357531

Appears in sequences

• Palindromes whose squares belong to A066531.at n=15A117281
• Palindromic numbers which are the product of a number k and its reversal (k written backwards).at n=19A158642
• a(2n-1) is concatenation of sequence (1,3,..,2n-3,2n-1,2n-3,..3,1) and a(2n) is concatenation of sequence (1,3,..,2n-3,2n-1,2n-1,2n-3,..3,1).at n=6A287295