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

Terms

a(0) =1a(1) =0a(2) =2a(3) =2a(4) =5a(5) =9a(6) =17a(7) =33a(8) =62a(9) =119a(10) =226a(11) =431a(12) =821a(13) =1564a(14) =2980a(15) =5677a(16) =10816a(17) =20606a(18) =39258a(19) =74793a(20) =142493a(21) =271473a(22) =517201a(23) =985354a(24) =1877263a(25) =3576498a(26) =6813823a(27) =12981465a(28) =24731848a(29) =47118280