-log(1-Sum_{n>0} x^n/n^2) = Sum_{n>=0} a(n)*x^n/n!^2.

A074708

-log(1-Sum_{n>0} x^n/n^2) = Sum_{n>=0} a(n)*x^n/n!^2.

Terms

    a(0) =1a(1) =3a(2) =25a(3) =406a(4) =10856a(5) =432536a(6) =24032380a(7) =1776015088a(8) =168482342208

External references