G.f. A(x) satisfies: [x^n] (1+x)^(n^2) / A(x) = 0 for n > 0.

A304191

G.f. A(x) satisfies: [x^n] (1+x)^(n^2) / A(x) = 0 for n > 0.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =35a(4) =611a(5) =14691a(6) =448873a(7) =16606825a(8) =720241161a(9) =35786093321

External references