A039022 Numbers n such that representation in base 6 has same number of 1's and 4's.

0, 2, 3, 5, 10, 12, 14, 15, 17, 18, 20, 21, 23, 25, 30, 32, 33, 35, 40, 52, 58, 60, 62, 63, 65, 70, 72, 74, 75, 77, 82, 84, 86, 87, 89, 90, 92, 93, 95, 97, 102, 104, 105, 107, 108, 110, 111, 113, 118, 120, 122, 123, 125, 126, 128, 129, 131, 133, 138, 140, 141, 143