Expansion of cosh(tan(x)*sin(x)).

A009164

Expansion of cosh(tan(x)*sin(x)).

Terms

    a(0) =1a(1) =0a(2) =12a(3) =120a(4) =5712a(5) =277440a(6) =22051392a(7) =2264545920a(8) =305454289152

External references