Numbers whose base-9 representation has the same nonzero number of 0's and 2's.

Terms

a(0) =18a(1) =83a(2) =99a(3) =163a(4) =165a(5) =166a(6) =167a(7) =168a(8) =169a(9) =170a(10) =171a(11) =189a(12) =198a(13) =207a(14) =216a(15) =225a(16) =234a(17) =245a(18) =261a(19) =326a(20) =342a(21) =407a(22) =423a(23) =488a(24) =504a(25) =569a(26) =585a(27) =650a(28) =666a(29) =740