Numbers whose base-4 representation contains exactly four 0's and no 2's.

Terms

a(0) =256a(1) =768a(2) =1025a(3) =1027a(4) =1028a(5) =1036a(6) =1040a(7) =1072a(8) =1088a(9) =1216a(10) =1280a(11) =1792a(12) =3073a(13) =3075a(14) =3076a(15) =3084a(16) =3088a(17) =3120a(18) =3136a(19) =3264a(20) =3328a(21) =3840a(22) =4101a(23) =4103a(24) =4109a(25) =4111a(26) =4113a(27) =4115a(28) =4116a(29) =4124