E.g.f.: Sum_{n>=1} (1 - exp(-n^2*x))^n / n.

A220179

E.g.f.: Sum_{n>=1} (1 - exp(-n^2*x))^n / n.

Terms

    a(0) =1a(1) =15a(2) =1267a(3) =316275a(4) =174397531a(5) =179770837155

External references