Numbers whose base-9 representation has the same number of 0's as 8's.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =10a(8) =11a(9) =12a(10) =13a(11) =14a(12) =15a(13) =16a(14) =19a(15) =20a(16) =21a(17) =22a(18) =23a(19) =24a(20) =25a(21) =28a(22) =29a(23) =30a(24) =31a(25) =32a(26) =33a(27) =34a(28) =37a(29) =38