A transform of (1-x)/(1-2x).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =17a(7) =27a(8) =44a(9) =71a(10) =116a(11) =188a(12) =305a(13) =493a(14) =798a(15) =1291a(16) =2090a(17) =3382a(18) =5473a(19) =8855a(20) =14328a(21) =23183a(22) =37512a(23) =60696a(24) =98209a(25) =158905a(26) =257114a(27) =416019a(28) =673134a(29) =1089154