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

Terms

a(0) =1a(1) =1a(2) =0a(3) =-5a(4) =-13a(5) =-12a(6) =25a(7) =117a(8) =196a(9) =3a(10) =-841a(11) =-2200a(12) =-2079a(13) =4121a(14) =19720a(15) =33435a(16) =1547a(17) =-140772a(18) =-372775a(19) =-359763a(20) =678796a(21) =3323203a(22) =5702319a(23) =437200a(24) =-23557759a(25) =-63154959a(26) =-62213360a(27) =111716475a(28) =559940707a(29) =972313668