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

A378017

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

Terms

    a(0) =1a(1) =3a(2) =15a(3) =148a(4) =2077a(5) =38326a(6) =883369a(7) =24431436a(8) =789531705a(9) =29213730010

External references