G.f. A(x) satisfies: 4 = Sum_{n>=0} (3/4)^n * (1 + x)^(n^2) / A(x)^n.

A303292

G.f. A(x) satisfies: 4 = Sum_{n>=0} (3/4)^n * (1 + x)^(n^2) / A(x)^n.

Terms

    a(0) =1a(1) =7a(2) =189a(3) =17283a(4) =2755053a(5) =604260531a(6) =165416203197

External references