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

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =0a(4) =2a(5) =1a(6) =-2a(7) =-3a(8) =1a(9) =5a(10) =2a(11) =-6a(12) =-7a(13) =4a(14) =13a(15) =3a(16) =-17a(17) =-16a(18) =14a(19) =33a(20) =2a(21) =-47a(22) =-35a(23) =45a(24) =82a(25) =-10a(26) =-127a(27) =-72a(28) =137a(29) =199