1413141domain: NAppears in sequencesPalindromes n such that 4n + 1 is also a palindrome.at n=32A083831Palindromes in base 10 >= 256 that remain palindromes when the digits are reversed in base 256.at n=11A253147Nontrivial palindromes in base 10 and base 256.at n=8A253148