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

Terms

a(0) =1a(1) =0a(2) =1a(3) =3a(4) =5a(5) =14a(6) =34a(7) =81a(8) =200a(9) =487a(10) =1187a(11) =2899a(12) =7072a(13) =17256a(14) =42109a(15) =102748a(16) =250717a(17) =611779a(18) =1492805a(19) =3642610a(20) =8888370a(21) =21688597a(22) =52922564a(23) =129136875a(24) =315108171a(25) =768898587a(26) =1876197092a(27) =4578127192a(28) =11171133721a(29) =27258794552