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

A377608

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

Terms

    a(0) =1a(1) =3a(2) =19a(3) =202a(4) =3085a(5) =61886a(6) =1544029a(7) =46182900a(8) =1612759369a(9) =64455582394

External references