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

Terms

a(0) =1a(1) =0a(2) =4a(3) =2a(4) =18a(5) =18a(6) =86a(7) =122a(8) =430a(9) =746a(10) =2222a(11) =4346a(12) =11742a(13) =24682a(14) =62958a(15) =138202a(16) =340670a(17) =767562a(18) =1853838a(19) =4242746a(20) =10122974a(21) =23386282a(22) =55392686a(23) =128691866a(24) =303490046a(25) =707472138a(26) =1664048590a(27) =3886957050a(28) =9128207134a(29) =21347938154