7221250

Appears in sequences

• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=0..n} k^(j*(n-j)) * binomial(n,j).at n=61A355395
• Expansion of e.g.f. Sum_{k>=0} exp(4^k * x) * x^k/k!.at n=6A355440