Expansion of Sum_{k>=0} k^4 * x^k/(1 + k * x).

Terms

a(0) =0a(1) =1a(2) =15a(3) =50a(4) =76a(5) =203a(6) =335a(7) =-84a(8) =2696a(9) =-3011a(10) =-8433a(11) =130606a(12) =-662348a(13) =1840439a(14) =2391823a(15) =-67000872a(16) =478203152a(17) =-1994884455a(18) =1669477263a(19) =56929821514a(20) =-615188031396