Expansion of e.g.f. tan(x)/cos(sinh(x)), odd powers only.

A009756

Expansion of e.g.f. tan(x)/cos(sinh(x)), odd powers only.

Terms

    a(0) =1a(1) =5a(2) =81a(3) =2477a(4) =124513a(5) =9330485a(6) =977555697a(7) =136714167389

External references