E.g.f.: sin(x)*sin(tan(x))/2 (even powers only).

A024301

E.g.f.: sin(x)*sin(tan(x))/2 (even powers only).

Terms

    a(0) =0a(1) =1a(2) =0a(3) =-16a(4) =-992a(5) =-59008a(6) =-4264960a(7) =-377357440a(8) =-39934410752

External references