Numbers containing the digits 0, 1, 2, 5 or 8 only. 0, 1, 2, 5, 8, 10, 11, 12, 15, 18, 20, 21, 22, 25, 28, 50, 51, 52, 55, 58, 80, 81, 82, 85
1 seqfan posts