Product_{n>=1} (1 + a(n) * x^n) = 1 + Sum_{n>=1} n^3 * x^n.

Terms

a(0) =1a(1) =8a(2) =19a(3) =45a(4) =-72a(5) =-224a(6) =-72a(7) =3465a(8) =1656a(9) =-4752a(10) =-31248a(11) =-440a(12) =62064a(13) =415008a(14) =936432a(15) =6776793a(16) =-16454232a(17) =-24983784a(18) =74804904a(19) =468856296a(20) =236519784a(21) =-2495390904a(22) =-8714625696a(23) =-8228470832a(24) =62274531168a(25) =155889061848a(26) =-47291852448