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

Terms

a(0) =1a(1) =2a(2) =5a(3) =9a(4) =18a(5) =33a(6) =65a(7) =126a(8) =253a(9) =505a(10) =1018a(11) =2041a(12) =4097a(13) =8198a(14) =16405a(15) =32793a(16) =65570a(17) =131089a(18) =262145a(19) =524238a(20) =1048493a(21) =2097017a(22) =4194186a(23) =8388521a(24) =16777281a(25) =33554646a(26) =67109317a(27) =134218265a(28) =268436018a(29) =536871105