E.g.f. satisfies A(x) = 1 - log(1 - x*A(x)^2)/A(x).

A365438

E.g.f. satisfies A(x) = 1 - log(1 - x*A(x)^2)/A(x).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =20a(4) =216a(5) =3214a(6) =60940a(7) =1405088a(8) =38165904a(9) =1193631360a(10) =42244603368

External references