Expansion of e.g.f. exp(2*x*G(x)^3) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.

A380605

Expansion of e.g.f. exp(2*x*G(x)^3) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.

Terms

    a(0) =1a(1) =2a(2) =16a(3) =260a(4) =6544a(5) =224672a(6) =9797824a(7) =518778752a(8) =32332764160

External references