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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =17a(6) =41a(7) =81a(8) =157a(9) =337a(10) =785a(11) =1825a(12) =4085a(13) =8913a(14) =19449a(15) =42993a(16) =95885a(17) =213777a(18) =474465a(19) =1049921a(20) =2323685a(21) =5150865a(22) =11429321a(23) =25358737a(24) =56233853a(25) =124658129a(26) =276348849a(27) =612740961a(28) =1358769877a(29) =3013068113