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

A009796

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

Terms

    a(0) =0a(1) =2a(2) =-4a(3) =198a(4) =-4488a(5) =365834a(6) =-26333836a(7) =3548101326a(8) =-521011775760

External references