Expansion of cosh(sin(x))/cos(x).

A009144

Expansion of cosh(sin(x))/cos(x).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =88a(4) =2176a(5) =78080a(6) =4159616a(7) =307882240a(8) =29920681984

External references