A001162 Numbers containing an odd number of letters.

1, 2, 3, 6, 7, 8, 10, 15, 16, 17, 21, 22, 23, 26, 27, 28, 31, 32, 33, 36, 37, 38, 40, 44, 45, 49, 50, 54, 55, 59, 60, 64, 65, 69, 70, 74, 75, 79, 81, 82, 83, 86, 87, 88, 91, 92, 93, 96, 97, 98