A033021 n-th number k such that every run of digits of k in base 8 has length >=2.

9, 18, 27, 36, 45, 54, 63, 73, 146, 219, 292, 365, 438, 511, 576, 585, 594, 603, 612, 621, 630, 639, 1152, 1161, 1170, 1179, 1188, 1197, 1206, 1215, 1728, 1737, 1746, 1755, 1764, 1773, 1782, 1791, 2304, 2313, 2322, 2331, 2340