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

A009792

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

Terms

    a(0) =1a(1) =-1a(2) =-7a(3) =-1a(4) =-271a(5) =-160865a(6) =-20526295a(7) =-2612566625a(8) =-428389803295

External references