Numbers whose base-8 representation has the same nonzero number of 0's and 1's.

Terms

a(0) =8a(1) =66a(2) =67a(3) =68a(4) =69a(5) =70a(6) =71a(7) =80a(8) =88a(9) =96a(10) =104a(11) =112a(12) =120a(13) =129a(14) =136a(15) =193a(16) =200a(17) =257a(18) =264a(19) =321a(20) =328a(21) =385a(22) =392a(23) =449a(24) =456a(25) =513a(26) =520a(27) =530a(28) =531a(29) =532