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

A318224

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

Terms

    a(0) =1a(1) =1a(2) =-3a(3) =37a(4) =-1007a(5) =47901a(6) =-3514499a(7) =367671697a(8) =-51952729023

External references