Expansion of e.g.f. exp(cos(tan(x))-1) (even powers only).

A297215

Expansion of e.g.f. exp(cos(tan(x))-1) (even powers only).

Terms

    a(0) =1a(1) =-1a(2) =-4a(3) =-7a(4) =1003a(5) =64836a(6) =3350349a(7) =104475395a(8) =-12291888052

External references