Expansion of e.g.f. sin(x/cos(x)) (odd powers only).

A009562

Expansion of e.g.f. sin(x/cos(x)) (odd powers only).

Terms

    a(0) =1a(1) =2a(2) =-4a(3) =-624a(4) =-37808a(5) =-2529440a(6) =-197245632a(7) =-17275207936

External references