Expansion of e.g.f. 1 / (exp(-x^3) - x).

Terms

a(0) =1a(1) =1a(2) =2a(3) =12a(4) =72a(5) =480a(6) =3960a(7) =40320a(8) =463680a(9) =5866560a(10) =82857600a(11) =1297296000a(12) =22133865600a(13) =407869862400