1682209domain: NAppears in sequencesSquares which are palindromes in base 6.at n=11A029991Number of subtrees of a complete binary tree.at n=35A157679Numbers k such that sigma(k^3) is prime.at n=33A279096Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=28A316484