Numbers whose base-8 representation has the same nonzero number of 0's and 5's.

Terms

a(0) =40a(1) =69a(2) =104a(3) =133a(4) =168a(5) =197a(6) =232a(7) =261a(8) =296a(9) =321a(10) =322a(11) =323a(12) =324a(13) =326a(14) =327a(15) =328a(16) =336a(17) =344a(18) =352a(19) =368a(20) =376a(21) =389a(22) =424a(23) =453a(24) =488a(25) =525a(26) =533a(27) =541a(28) =549a(29) =553