E.g.f. exp(sin(x)*exp(x)).

Terms

a(0) =1a(1) =1a(2) =3a(3) =9a(4) =33a(5) =137a(6) =619a(7) =3017a(8) =15617a(9) =84625a(10) =474771a(11) =2723721a(12) =15730209a(13) =89487257a(14) =482793211a(15) =2259370697a(16) =6292321025a(17) =-41172399839