Numbers whose base-8 representation has the same number of 0's as 7's.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =9a(7) =10a(8) =11a(9) =12a(10) =13a(11) =14a(12) =17a(13) =18a(14) =19a(15) =20a(16) =21a(17) =22a(18) =25a(19) =26a(20) =27a(21) =28a(22) =29a(23) =30a(24) =33a(25) =34a(26) =35a(27) =36a(28) =37a(29) =38