A032929 n-th number whose set of base 8 digits is {1,2}.

1, 2, 9, 10, 17, 18, 73, 74, 81, 82, 137, 138, 145, 146, 585, 586, 593, 594, 649, 650, 657, 658, 1097, 1098, 1105, 1106, 1161, 1162, 1169, 1170, 4681, 4682, 4689, 4690, 4745, 4746, 4753, 4754, 5193, 5194, 5201, 5202, 5257, 5258