Base 6 expansion uses each positive digit just once.

Terms

a(0) =1865a(1) =1870a(2) =1895a(3) =1905a(4) =1930a(5) =1935a(6) =2045a(7) =2050a(8) =2105a(9) =2120a(10) =2140a(11) =2150a(12) =2255a(13) =2265a(14) =2285a(15) =2300a(16) =2355a(17) =2360a(18) =2470a(19) =2475a(20) =2500a(21) =2510a(22) =2535a(23) =2540a(24) =2945a(25) =2950a(26) =2975a(27) =2985a(28) =3010a(29) =3015