Numbers whose binary expansion does not contain 110.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =7a(7) =8a(8) =9a(9) =10a(10) =11a(11) =15a(12) =16a(13) =17a(14) =18a(15) =19a(16) =20a(17) =21a(18) =23a(19) =31a(20) =32a(21) =33a(22) =34a(23) =35a(24) =36a(25) =37a(26) =39a(27) =40a(28) =41a(29) =42