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

A009485

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

Terms

    a(0) =1a(1) =-5a(2) =77a(3) =-2641a(4) =149529a(5) =-12183613a(6) =1342074021a(7) =-192192501897

External references