a(n) = Sum_{k=0..n} n^k * binomial(n,k)^n.

A336188

a(n) = Sum_{k=0..n} n^k * binomial(n,k)^n.

Terms

    a(0) =1a(1) =2a(2) =13a(3) =352a(4) =38401a(5) =16971876a(6) =29359436149

External references