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

A376515

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

Terms

    a(0) =1a(1) =0a(2) =2a(3) =6a(4) =60a(5) =480a(6) =5880a(7) =75600a(8) =1197840a(9) =20865600a(10) =415074240a(11) =9067766400a(12) =218808596160

External references