A044234 Numbers n such that string 5,7 occurs in the base 8 representation of n but not of n-1.

47, 111, 175, 239, 303, 367, 376, 431, 495, 559, 623, 687, 751, 815, 879, 888, 943, 1007, 1071, 1135, 1199, 1263, 1327, 1391, 1400, 1455, 1519, 1583, 1647, 1711, 1775, 1839, 1903, 1912, 1967, 2031, 2095, 2159, 2223, 2287, 2351