57671680

Appears in sequences

• 4-fold convolution of A000302 (powers of 4); expansion of g.f. 1/(1-4*x)^4.at n=9A038846
• Number of subsets of {1,.., n} containing exactly two primes.at n=30A089822
• Number of n X 1 0..4 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling four exactly once.at n=11A269822
• Fixed points of map n -> A366275(n).at n=45A366277