Numbers whose base-11 representation has the same nonzero number of 0's and 1's.

Terms

a(0) =11a(1) =123a(2) =124a(3) =125a(4) =126a(5) =127a(6) =128a(7) =129a(8) =130a(9) =131a(10) =143a(11) =154a(12) =165a(13) =176a(14) =187a(15) =198a(16) =209a(17) =220a(18) =231a(19) =243a(20) =253a(21) =364a(22) =374a(23) =485a(24) =495a(25) =606a(26) =616a(27) =727a(28) =737a(29) =848