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

Terms

a(0) =0a(1) =0a(2) =0a(3) =6a(4) =24a(5) =60a(6) =480a(7) =5250a(8) =40656a(9) =363384a(10) =4839120a(11) =65198430a(12) =859543080a(13) =13311494196a(14) =233478687624