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

Terms

a(0) =1a(1) =-1a(2) =2a(3) =1a(4) =-2a(5) =3a(6) =-1a(7) =-3a(8) =5a(9) =-4a(10) =-2a(11) =8a(12) =-9a(13) =2a(14) =10a(15) =-17a(16) =11a(17) =8a(18) =-27a(19) =28a(20) =-3a(21) =-35a(22) =55a(23) =-31a(24) =-32a(25) =90a(26) =-86a(27) =-1a(28) =122a(29) =-176