A044232 Numbers n such that string 5,5 occurs in the base 8 representation of n but not of n-1.

45, 109, 173, 237, 301, 360, 429, 493, 557, 621, 685, 749, 813, 872, 941, 1005, 1069, 1133, 1197, 1261, 1325, 1384, 1453, 1517, 1581, 1645, 1709, 1773, 1837, 1896, 1965, 2029, 2093, 2157, 2221, 2285, 2349, 2408, 2477, 2541