Expansion of (1 + x - x^4)/((1 + x - x^4)^2 - 4*x).

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =10a(5) =21a(6) =48a(7) =99a(8) =183a(9) =326a(10) =602a(11) =1165a(12) =2282a(13) =4396a(14) =8318a(15) =15675a(16) =29743a(17) =56841a(18) =108765a(19) =207510a(20) =394809a(21) =750880a(22) =1429845a(23) =2725685a(24) =5196420a(25) =9901692a(26) =18859649a(27) =35921156a(28) =68432064a(29) =130388316