395637

Appears in sequences

• a(n) = 16*n^4 + 256*n^3 + 1160*n^2 + 1088*n + 285.at n=9A176712
• 1/n! times the number of ordered pairs of permutation functions f,g on n elements where f(f(x)) = g(f(g(x))).at n=24A255515