Numbers whose base-12 representation has the same number of 1's and 2's.

Terms

a(0) =0a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =10a(9) =11a(10) =14a(11) =25a(12) =36a(13) =39a(14) =40a(15) =41a(16) =42a(17) =43a(18) =44a(19) =45a(20) =46a(21) =47a(22) =48a(23) =51a(24) =52a(25) =53a(26) =54a(27) =55a(28) =56a(29) =57