A048408 Numbers whose consecutive digits differ by 6.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 17, 28, 39, 60, 71, 82, 93, 171, 282, 393, 606, 717, 828, 939, 1717, 2828, 3939, 6060, 7171, 8282, 9393, 17171, 28282, 39393, 60606, 71717, 82828, 93939, 171717, 282828, 393939, 606060, 717171, 828282, 939393, 1717171
Offset: 0