A039029 Numbers n such that representation in base 6 has same number of 4's and 5's.

0, 1, 2, 3, 6, 7, 8, 9, 12, 13, 14, 15, 18, 19, 20, 21, 29, 34, 36, 37, 38, 39, 42, 43, 44, 45, 48, 49, 50, 51, 54, 55, 56, 57, 65, 70, 72, 73, 74, 75, 78, 79, 80, 81, 84, 85, 86, 87, 90, 91, 92, 93, 101, 106, 108, 109, 110, 111, 114, 115, 116, 117, 120, 121, 122, 123