n-th derivative of cos(x)^tan(x) at x=0.

Terms

a(0) =1a(1) =0a(2) =0a(3) =-3a(4) =0a(5) =-30a(6) =90a(7) =-588a(8) =5040a(9) =-26520a(10) =325080a(11) =-2158728a(12) =27731880a(13) =-249259920a(14) =3181258080a(15) =-36821629848a(16) =482278043520