A039185 Numbers n such that representation in base 11 has same number of 3's and 7's.

0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 20, 21, 22, 23, 24, 26, 27, 28, 30, 31, 32, 40, 44, 45, 46, 48, 49, 50, 52, 53, 54, 55, 56, 57, 59, 60, 61, 63, 64, 65, 66, 67, 68, 70, 71, 72, 74, 75, 76, 80, 88, 89, 90, 92, 93, 94, 96, 97, 98, 99, 100, 101, 103