Expansion of (1+2*x-x^3)/(1-4*x^2+2*x^4).

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =14a(5) =24a(6) =48a(7) =82a(8) =164a(9) =280a(10) =560a(11) =956a(12) =1912a(13) =3264a(14) =6528a(15) =11144a(16) =22288a(17) =38048a(18) =76096a(19) =129904a(20) =259808a(21) =443520a(22) =887040a(23) =1514272a(24) =3028544a(25) =5170048a(26) =10340096a(27) =17651648a(28) =35303296a(29) =60266496