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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =9a(6) =21a(7) =41a(8) =75a(9) =141a(10) =281a(11) =577a(12) =1179a(13) =2369a(14) =4709a(15) =9353a(16) =18659a(17) =37365a(18) =74889a(19) =149937a(20) =299827a(21) =599289a(22) =1198101a(23) =2396137a(24) =4793051a(25) =9587421a(26) =19175449a(27) =38349409a(28) =76695403a(29) =153388273