A030294 Numbers n such that n^3 has at most three different digits.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 20, 30, 36, 40, 62, 70, 92, 100, 101, 110, 173, 192, 200, 211, 300, 400, 700, 888, 1000, 1001, 1010, 1100, 1920, 2000, 3000, 3543, 4000, 7000, 8880, 10000, 10001, 10010, 10100, 11000, 19200, 20000