E.g.f. satisfies A(x) = 1 + x*A(x)*exp(x^2*A(x)^3).

A365284

E.g.f. satisfies A(x) = 1 + x*A(x)*exp(x^2*A(x)^3).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =12a(4) =144a(5) =1980a(6) =31680a(7) =630840a(8) =15093120a(9) =411883920a(10) =12607660800a(11) =430740858240

External references