G.f.: Sum_{n>=0} a(n)*x^n / (1+x)^(n^3) = x.

A229711

G.f.: Sum_{n>=0} a(n)*x^n / (1+x)^(n^3) = x.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =154a(4) =7329a(5) =621054a(6) =83287785a(7) =16339143828

External references