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

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =4a(5) =10a(6) =20a(7) =35a(8) =1176a(9) =10164a(10) =58920a(11) =277365a(12) =4472380a(13) =69189406a(14) =772011604a(15) =6861855455a(16) =95279504880