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

Terms

a(0) =1a(1) =1a(2) =2a(3) =0a(4) =-24a(5) =-240a(6) =-1800a(7) =-10080a(8) =-20160a(9) =665280a(10) =15120000a(11) =219542400a(12) =2335132800a(13) =11416204800a(14) =-272432160000