E.g.f. satisfies: A(x) = Sum_{n>=0} x^n/n! * A(x)^(n(n+1)/2).

A155805

E.g.f. satisfies: A(x) = Sum_{n>=0} x^n/n! * A(x)^(n(n+1)/2).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =19a(4) =191a(5) =2656a(6) =47392a(7) =1034335a(8) =26721781a(9) =798018616a(10) =27058991246

External references