A048300 Numbers whose base-3 expansions, read from left to right, have run lengths that strictly increase.
0, 1, 2, 4, 8, 9, 13, 17, 18, 22, 26, 27, 40, 53, 54, 67, 80, 81, 108, 121, 134, 161, 162, 202, 216, 229, 242, 243, 256, 269, 324, 364, 404, 459, 472, 485, 486, 499, 512, 594, 607, 620, 648, 688, 728, 729, 769, 809, 972, 1053, 1093, 1133, 1214, 1377, 1417
Offset: 0