A044659 Numbers n such that string 3,0 occurs in the base 9 representation of n but not of n+1.

27, 108, 189, 251, 270, 351, 432, 513, 594, 675, 756, 837, 918, 980, 999, 1080, 1161, 1242, 1323, 1404, 1485, 1566, 1647, 1709, 1728, 1809, 1890, 1971, 2052, 2133, 2267, 2295, 2376, 2438, 2457, 2538, 2619, 2700, 2781, 2862