E.g.f. A(x) = G(x)/x where G(x) is the e.g.f. of A179493.

A179494

E.g.f. A(x) = G(x)/x where G(x) is the e.g.f. of A179493.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =27a(4) =284a(5) =4110a(6) =77424a(7) =1818474a(8) =51692080a(9) =1738555344a(10) =67979689200

External references