Expansion of cos(sin(x)*cos(x)), even terms only.

A009046

Expansion of cos(sin(x)*cos(x)), even terms only.

Terms

    a(0) =1a(1) =-1a(2) =17a(3) =-337a(4) =9697a(5) =-451809a(6) =29324913a(7) =-2348275633a(8) =229227939521

External references