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

Terms

a(0) =1a(1) =0a(2) =-2a(3) =-1a(4) =3a(5) =3a(6) =-4a(7) =-7a(8) =4a(9) =14a(10) =-1a(11) =-25a(12) =-9a(13) =40a(14) =33a(15) =-56a(16) =-82a(17) =63a(18) =171a(19) =-37a(20) =-316a(21) =-71a(22) =524a(23) =350a(24) =-769a(25) =-945a(26) =943a(27) =2064a(28) =-767a(29) =-3952