Expansion of b(2)*b(4)*b(6)/(x^8-x^4-x+1), where b(k) = (1-x^k)/(1-x).

Terms

a(0) =1a(1) =4a(2) =9a(3) =16a(4) =25a(5) =37a(6) =53a(7) =74a(8) =101a(9) =135a(10) =179a(11) =237a(12) =313a(13) =411a(14) =537a(15) =700a(16) =912a(17) =1188a(18) =1546a(19) =2009a(20) =2608a(21) =3385a(22) =4394a(23) =5703a(24) =7399a(25) =9596a(26) =12444a(27) =16138a(28) =20929a(29) =27140