a(n) = (n^2)! * [x^(n^2)] 1 / (1 - Sum_{k>=1} x^(n*k) / (n*k)!).

A332303

a(n) = (n^2)! * [x^(n^2)] 1 / (1 - Sum_{k>=1} x^(n*k) / (n*k)!).

Terms

    a(0) =1a(1) =1a(2) =7a(3) =1849a(4) =65782211

External references