E.g.f. satisfies A(x) = exp(x) * (1 + x * A(x))^3.

A377741

E.g.f. satisfies A(x) = exp(x) * (1 + x * A(x))^3.

Terms

    a(0) =1a(1) =4a(2) =37a(3) =583a(4) =13225a(5) =394681a(6) =14659537a(7) =652829857a(8) =33937422001

External references