Numbers whose base-8 representation has the same nonzero number of 0's and 4's.

Terms

a(0) =32a(1) =68a(2) =96a(3) =132a(4) =160a(5) =196a(6) =224a(7) =257a(8) =258a(9) =259a(10) =261a(11) =262a(12) =263a(13) =264a(14) =272a(15) =280a(16) =296a(17) =304a(18) =312a(19) =324a(20) =352a(21) =388a(22) =416a(23) =452a(24) =480a(25) =524a(26) =532a(27) =540a(28) =545a(29) =546