A056089 Numbers n such that n^18 = 1 (mod 19^3).

1, 333, 623, 956, 1145, 1689, 2819, 2820, 2834, 4025, 4039, 4040, 5170, 5714, 5903, 6236, 6526, 6858, 6860, 7192, 7482, 7815, 8004, 8548, 9678, 9679, 9693, 10884, 10898, 10899, 12029, 12573, 12762, 13095, 13385, 13717, 13719, 14051, 14341