A043646 Numbers n such that base 11 representation has exactly 3 runs.

122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 143, 144, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180