a(n) = Sum_{k=0..n} (k*n-1)^(n-k) * binomial(n,k).

A356806

a(n) = Sum_{k=0..n} (k*n-1)^(n-k) * binomial(n,k).

Terms

    a(0) =1a(1) =0a(2) =4a(3) =27a(4) =448a(5) =10625a(6) =344736a(7) =14437213a(8) =753991680a(9) =47974773393

External references