a(n) = (n!)^n * [x^n] -log(1 - Sum_{k>=1} x^k / k^n).

A336438

a(n) = (n!)^n * [x^n] -log(1 - Sum_{k>=1} x^k / k^n).

Terms

    a(0) =0a(1) =1a(2) =3a(3) =107a(4) =109720a(5) =5916402624

External references