E.g.f. satisfies A(x) = exp(x * (1-x)^3 * A(x)) / (1-x)^4.

A378091

E.g.f. satisfies A(x) = exp(x * (1-x)^3 * A(x)) / (1-x)^4.

Terms

    a(0) =1a(1) =5a(2) =33a(3) =280a(4) =3009a(5) =40456a(6) =670351a(7) =13428794a(8) =318341841a(9) =8747362540a(10) =273595272231

External references