A048320 Numbers whose base-9 expansions, read from left to right, have run lengths that strictly decrease.
0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 20, 30, 40, 50, 60, 70, 80, 90, 91, 92, 93, 94, 95, 96, 97, 98, 180, 181, 182, 183, 184, 185, 186, 187, 188, 270, 271, 272, 273, 274, 275, 276, 277, 278, 360, 361, 362, 363, 364, 365, 366, 367, 368, 450, 451, 452, 453, 454, 455, 456
Offset: 0