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

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =4a(5) =10a(6) =20a(7) =35a(8) =616a(9) =5124a(10) =29520a(11) =138765a(12) =1312300a(13) =16576846a(14) =175795984a(15) =1539037955a(16) =15687832720a(17) =216382727240