Expansion of Sum_{k>=0} k^3 * x^k/(1 + k * x).

Terms

a(0) =0a(1) =1a(2) =7a(3) =12a(4) =14a(5) =49a(6) =13a(7) =8a(8) =596a(9) =-1967a(10) =4011a(11) =9764a(12) =-128878a(13) =664545a(14) =-1837695a(15) =-2388448a(16) =67004968a(17) =-478198239a(18) =1994890287a(19) =-1669470404a(20) =-56929813514a(21) =615188040657