Expansion of (1-x-x^2)/((1-x)*(1-2*x)).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =9a(5) =17a(6) =33a(7) =65a(8) =129a(9) =257a(10) =513a(11) =1025a(12) =2049a(13) =4097a(14) =8193a(15) =16385a(16) =32769a(17) =65537a(18) =131073a(19) =262145a(20) =524289a(21) =1048577a(22) =2097153a(23) =4194305a(24) =8388609a(25) =16777217a(26) =33554433a(27) =67108865a(28) =134217729a(29) =268435457