E.g.f.: exp(5*x*G(x)^4) / G(x) where G(x) = 1 + x*G(x)^5 is the g.f. of A002294.

A251665

E.g.f.: exp(5*x*G(x)^4) / G(x) where G(x) = 1 + x*G(x)^5 is the g.f. of A002294.

Terms

    a(0) =1a(1) =4a(2) =47a(3) =1034a(4) =34349a(5) =1540480a(6) =87311275a(7) =5991370390a(8) =483100288985

External references