Numbers whose base-8 representation has the same nonzero number of 1's and 6's.

Terms

a(0) =14a(1) =49a(2) =70a(3) =86a(4) =94a(5) =102a(6) =110a(7) =112a(8) =114a(9) =115a(10) =116a(11) =117a(12) =119a(13) =126a(14) =142a(15) =177a(16) =206a(17) =241a(18) =270a(19) =305a(20) =334a(21) =369a(22) =385a(23) =392a(24) =394a(25) =395a(26) =396a(27) =397a(28) =399a(29) =401