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

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =17a(5) =36a(6) =76a(7) =161a(8) =341a(9) =722a(10) =1529a(11) =3238a(12) =6857a(13) =14521a(14) =30751a(15) =65121a(16) =137906a(17) =292042a(18) =618454a(19) =1309693a(20) =2773522a(21) =5873456a(22) =12438151a(23) =26340131a(24) =55780196a(25) =118125087a(26) =250152154a(27) =529744373a(28) =1121833637a(29) =2375694341