294847

Appears in sequences

• a(n) = 4*n^4 + 8*n^3 - 4*n - 1 = (2*n^2 - 1)*(2*n^2 + 4*n + 1).at n=16A057769
• Numbers k such that the sum of the reverses of 1,2,...,k is a perfect square.at n=10A074238