E.g.f: 1/(1 - sin(x) + sin(x)^2 - sin(x)^3).

Terms

a(0) =1a(1) =1a(2) =0a(3) =-1a(4) =24a(5) =121a(6) =-480a(7) =-4201a(8) =48384a(9) =478801a(10) =-4968960a(11) =-62871601a(12) =885586944a(13) =12996863881a(14) =-203910819840