Numbers whose base-8 representation has the same nonzero number of 4's and 5's.

Terms

a(0) =37a(1) =44a(2) =101a(3) =108a(4) =165a(5) =172a(6) =229a(7) =236a(8) =261a(9) =269a(10) =277a(11) =285a(12) =296a(13) =297a(14) =298a(15) =299a(16) =302a(17) =303a(18) =309a(19) =317a(20) =324a(21) =332a(22) =340a(23) =348a(24) =352a(25) =353a(26) =354a(27) =355a(28) =358a(29) =359