Numbers whose base-8 representation has the same nonzero number of 3's and 6's.

Terms

a(0) =30a(1) =51a(2) =94a(3) =115a(4) =158a(5) =179a(6) =198a(7) =206a(8) =214a(9) =230a(10) =238a(11) =240a(12) =241a(13) =242a(14) =244a(15) =245a(16) =247a(17) =254a(18) =286a(19) =307a(20) =350a(21) =371a(22) =387a(23) =395a(24) =403a(25) =408a(26) =409a(27) =410a(28) =412a(29) =413