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

A009793

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

Terms

    a(0) =1a(1) =-6a(2) =72a(3) =-1904a(4) =89344a(5) =-6445824a(6) =660602880a(7) =-91175548928

External references