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

Terms

a(0) =1a(1) =-2a(2) =2a(3) =0a(4) =-2a(5) =4a(6) =-2a(7) =0a(8) =6a(9) =-4a(10) =6a(11) =8a(12) =-2a(13) =20a(14) =14a(15) =16a(16) =54a(17) =44a(18) =86a(19) =152a(20) =174a(21) =324a(22) =478a(23) =672a(24) =1126a(25) =1628a(26) =2470a(27) =3880a(28) =5726a(29) =8820