Expansion of e.g.f. 1/(1 - x^3/6 * (exp(x) - 1)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =4a(5) =10a(6) =20a(7) =35a(8) =1176a(9) =10164a(10) =58920a(11) =277365a(12) =3363580a(13) =47567806a(14) =519759604a(15) =4591587455a(16) =51017687280a(17) =786120055400