2004002domain: NAppears in sequencesPalindromes whose sum of divisors is odd.at n=20A028984Nonsquare palindromes whose sum of divisors is odd.at n=5A028985Palindromes in A085932.at n=16A085933Beginning with 1 palindromes with prime successive differences.at n=35A088049Palindromes of the form i^2 + reverse(i)^2.at n=28A256398