Base 5 expansion uses each positive digit just once.

Terms

a(0) =194a(1) =198a(2) =214a(3) =222a(4) =238a(5) =242a(6) =294a(7) =298a(8) =334a(9) =346a(10) =358a(11) =366a(12) =414a(13) =422a(14) =434a(15) =446a(16) =482a(17) =486a(18) =538a(19) =542a(20) =558a(21) =566a(22) =582a(23) =586a(24) =694a(25) =698a(26) =714a(27) =722a(28) =738a(29) =742