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

Terms

a(0) =4a(1) =18a(2) =32a(3) =91a(4) =76a(5) =358a(6) =148a(7) =917a(8) =796a(9) =2368a(10) =408a(11) =10354a(12) =612a(13) =16586a(14) =16984a(15) =52873a(16) =1208a(17) =180408a(18) =1616a(19) =374934a(20) =271408a(21) =749070a(22) =2692a(23) =3350370a(24) =178376a(25) =4592968a(26) =4349008a(27) =13197802a(28) =5076a(29) =45402484