E.g.f. exp(tan(x)*sin(x)) (even powers only).

A009250

E.g.f. exp(tan(x)*sin(x)) (even powers only).

Terms

    a(0) =1a(1) =2a(2) =16a(3) =302a(4) =10456a(5) =564842a(6) =43545676a(7) =4528889822a(8) =610057244176

External references