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

Terms

a(0) =2a(1) =3a(2) =6a(3) =10a(4) =18a(5) =31a(6) =54a(7) =93a(8) =160a(9) =274a(10) =468a(11) =797a(12) =1354a(13) =2295a(14) =3882a(15) =6554a(16) =11046a(17) =18587a(18) =31230a(19) =52401a(20) =87812a(21) =146978a(22) =245736a(23) =410425a(24) =684818a(25) =1141611a(26) =1901454a(27) =3164458a(28) =5262330a(29) =8744599