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katadrome  and  uban n.

First numbers that belong to both sets:

1, 2, 3, 5, 6, 7, 8, 9, 10, 20, 21, 30, 31, 32, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 65, 70, 71, 72, 73, 75, 76, 80, 81, 82, 83, 85, 86, 87, 90, 91, 92, 93, 95, 96, 97, 98.