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

Terms

a(0) =1a(1) =0a(2) =3a(3) =-1a(4) =8a(5) =-6a(6) =22a(7) =-25a(8) =64a(9) =-91a(10) =195a(11) =-312a(12) =612a(13) =-1040a(14) =1953a(15) =-3420a(16) =6287a(17) =-11173a(18) =20328a(19) =-36386a(20) =65870a(21) =-118313a(22) =213668a(23) =-384423a(24) =693447a(25) =-1248624a(26) =2251096a(27) =-4054896a(28) =7308465a(29) =-13167160