Expansion of Sum_{k>=1} k^2 * x^k/(1 - x^k)^3.

Terms

a(0) =1a(1) =7a(2) =15a(3) =38a(4) =40a(5) =108a(6) =77a(7) =188a(8) =180a(9) =290a(10) =187a(11) =600a(12) =260a(13) =560a(14) =630a(15) =888a(16) =442a(17) =1323a(18) =551a(19) =1620a(20) =1218a(21) =1364a(22) =805a(23) =3024a(24) =1325a(25) =1898a(26) =1998a(27) =3136a(28) =1276a(29) =4680