130031

Appears in sequences

• a(1) = 1, a(n) = smallest palindrome not included earlier such that a(1)+...+a(n) is a palindrome.at n=38A073880
• Last term of n-th row of A077526.at n=12A077525
• Odd palindromes which are semiprimes with an even number of digits.at n=26A132288
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 427", based on the 5-celled von Neumann neighborhood.at n=32A288137