E.g.f. satisfies A(x) = exp(x * (1 + x) * A(x^2)).

A367747

E.g.f. satisfies A(x) = exp(x * (1 + x) * A(x^2)).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =13a(4) =73a(5) =561a(6) =4771a(7) =49813a(8) =562353a(9) =7340833a(10) =102829411a(11) =1627648221a(12) =27294311353a(13) =502042022353

External references