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

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =18a(5) =42a(6) =97a(7) =225a(8) =521a(9) =1207a(10) =2796a(11) =6477a(12) =15004a(13) =34757a(14) =80515a(15) =186514a(16) =432062a(17) =1000877a(18) =2318544a(19) =5370936a(20) =12441840a(21) =28821677a(22) =66765773a(23) =154663743a(24) =358280483a(25) =829961192a(26) =1922615417a(27) =4453762510a(28) =10317196211a(29) =23899913257