Expansion of Sum_{k>0} x^(3*k)/(1 - k*x^k)^3.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =6a(5) =11a(6) =15a(7) =27a(8) =29a(9) =60a(10) =45a(11) =145a(12) =66a(13) =318a(14) =146a(15) =789a(16) =120a(17) =2199a(18) =153a(19) =4890a(20) =1406a(21) =11730a(22) =231a(23) =34175a(24) =426a(25) =67884a(26) =20738a(27) =163956a(28) =378a(29) =453341