Numbers whose base-10 representation has the same number of 2's and 3's.

Terms

a(0) =0a(1) =1a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =10a(9) =11a(10) =14a(11) =15a(12) =16a(13) =17a(14) =18a(15) =19a(16) =23a(17) =32a(18) =40a(19) =41a(20) =44a(21) =45a(22) =46a(23) =47a(24) =48a(25) =49a(26) =50a(27) =51a(28) =54a(29) =55