Expansion of Sum_{k>0} x^(2*k)/(1-x^k)^4.

Terms

a(0) =0a(1) =1a(2) =4a(3) =11a(4) =20a(5) =40a(6) =56a(7) =95a(8) =124a(9) =186a(10) =220a(11) =336a(12) =364a(13) =512a(14) =584a(15) =775a(16) =816a(17) =1129a(18) =1140a(19) =1526a(20) =1600a(21) =1992a(22) =2024a(23) =2720a(24) =2620a(25) =3290a(26) =3400a(27) =4176a(28) =4060a(29) =5280