Expansion of Sum_{k>0} x^(2*k)/(1+x^k)^5.

Terms

a(0) =0a(1) =1a(2) =-5a(3) =16a(4) =-35a(5) =66a(6) =-126a(7) =226a(8) =-335a(9) =461a(10) =-715a(11) =1082a(12) =-1365a(13) =1695a(14) =-2420a(15) =3286a(16) =-3876a(17) =4581a(18) =-5985a(19) =7791a(20) =-8986a(21) =9912a(22) =-12650a(23) =16242a(24) =-17585a(25) =19111a(26) =-24086a(27) =29115a(28) =-31465a(29) =34106