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

A009479

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

Terms

    a(0) =1a(1) =1a(2) =17a(3) =201a(4) =7041a(5) =291025a(6) =18979729a(7) =1597285977a(8) =176766161281

External references