291080192

Appears in sequences

• Nonsquare palindromes whose sum of divisors is odd.at n=12A028985
• Let b(n)=product of exponents of prime factorization of n. Sequence gives palindromes n such that b(n) is also palindromic and sets a new record.at n=10A085631
• a(n) = smallest palindrome k > n such that k/n is a square; a(n) = 0 if no solution exists.at n=31A260726