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

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =24a(5) =60a(6) =120a(7) =210a(8) =40656a(9) =363384a(10) =2117520a(11) =9980190a(12) =520250280a(13) =9496208436a(14) =109522054824a(15) =982593614730