Numbers whose base-12 representation has the same nonzero number of 4's and 5's.

Terms

a(0) =53a(1) =64a(2) =197a(3) =208a(4) =341a(5) =352a(6) =485a(7) =496a(8) =581a(9) =593a(10) =605a(11) =617a(12) =636a(13) =637a(14) =638a(15) =639a(16) =642a(17) =643a(18) =644a(19) =645a(20) =646a(21) =647a(22) =653a(23) =665a(24) =677a(25) =689a(26) =701a(27) =713a(28) =724a(29) =736