112672

Appears in sequences

• Convolution of A000203 with itself.at n=63A000385
• Larger member of an infinitary amicable pair.at n=21A126170
• Number of different fixed (possibly) disconnected tetrominoes bounded (not necessarily tightly) by an n X n square.at n=7A162674
• a(n) = 2*n^4 - floor(2^(1/4)*n)^4.at n=34A257854
• Let x be the sum of the divisors d_i of k such that d_i | sigma(k). Sequence lists the numbers k for which x^2 = sigma(k).at n=9A284283