a(n) = n! * [x^n] exp(exp(n*x)-1).

A292914

a(n) = n! * [x^n] exp(exp(n*x)-1).

Terms

    a(0) =1a(1) =1a(2) =8a(3) =135a(4) =3840a(5) =162500a(6) =9471168a(7) =722247211a(8) =69457674240

External references