A043466 Numbers n such that number of 3's in base 9 is 2.

30, 111, 192, 246, 255, 264, 270, 271, 272, 274, 275, 276, 277, 278, 282, 291, 300, 309, 318, 354, 435, 516, 597, 678, 759, 840, 921, 975, 984, 993, 999, 1000, 1001, 1003, 1004, 1005, 1006, 1007, 1011, 1020, 1029, 1038, 1047