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

Terms

a(0) =1a(1) =-1a(2) =2a(3) =-1a(4) =3a(5) =0a(6) =5a(7) =3a(8) =10a(9) =11a(10) =23a(11) =32a(12) =57a(13) =87a(14) =146a(15) =231a(16) =379a(17) =608a(18) =989a(19) =1595a(20) =2586a(21) =4179a(22) =6767a(23) =10944a(24) =17713a(25) =28655a(26) =46370a(27) =75023a(28) =121395a(29) =196416