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

A009747

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

Terms

    a(0) =0a(1) =2a(2) =12a(3) =142a(4) =3192a(5) =116282a(6) =6219972a(7) =458790022a(8) =44625674352

External references