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

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =4a(5) =10a(6) =30a(7) =175a(8) =1176a(9) =7364a(10) =50520a(11) =425205a(12) =4010380a(13) =39433966a(14) =414654604a(15) =4793188855a(16) =59834495280a(17) =789420239560