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alternating n.  and  D-number

First numbers that belong to both sets:

9, 21, 63, 69, 87, 123, 129, 141, 183, 303, 309, 321, 327, 381, 501, 543, 723, 789, 921, 2103, 2127, 2181, 2307, 2361, 2589, 2721, 2787, 2901, 2949, 4101, 4143, 4341, 4569, 4701, 4749, 4989, 6189, 6387, 6729, 6927, 8121, 8187, 8301, 8367, 8529, 8583, 8709, 8727, 8781, 8907, 10167, 10347, 10383, 10389, 10581, 10587, 10743, 10749, 10929, 12147, 12381, 12387, 12723, 12729, 12783, 12981, 14109, 14163, 14169, 14187, 14349, 14361, 14367, 14583, 14709, 14727, 14763, 14901, 14907, 14961, 16143, 16161, 16323, 16329, 16347, 16383, 16503, 16509, 16521, 16563, 16581, 16707, 16743, 16923, 16941, 18129, 18141, 18303, 18363, 18741, 18789, 18903, 18969, 18987, 30183, 30309, 30507, 30543, 30729, 30741, 30903, 30909, 30963, 32127, 32169, 32187, 32343, 32367, 32541, 32583, 32709, 32727, 32961, 34107, 34149, 34329, 34341, 34509, 34581, 34761, 36123, 36129, 36147, 36303, 36321, 36327, 36723, 36789, 36903, 36969, 36987, 38109, 38163, 38343, 38523, 38721, 38769, 38901, 38949, 50109, 50187, 50361, 50529, 50703, 50709, 50763, 50781, 50943, 50961, 50963, 52149, 52161, 52167, 52329, 52347, 52527, 52707, 52743, 54123, 54129, 54141, 54147, 54183, 54363, 54381, 54507, 54543, 54903, 54921, 54987, 56103, 56361, 58143, 58161, 58323, 58341, 58389, 58503, 58521, 58749, 58983, 70107, 70341, 70527, 70701, 70743, 70989, 72129, 72147, 72183, 72309, 72321, 72327, 72363, 72507, 72543, 72741, 72987, 74127, 74301, 74343, 74523, 74541, 74721, 74769, 74901, 74967, 76101, 76341, 76389, 76569, 76749, 76767, 76929, 78123, 78321, 78549, 78567, 78747, 78783, 78789, 78927, 78963, 90141, 90309, 90327, 90507, 90543, 90561, 90723, 90921, 90969, 92109, 92121, 92181, 92343, 92523, 92949, 94161, 94701, 94749, 94929, 94947, 94989, 96189, 96549, 96567, 96783, 96909, 96927, 96963, 96969, 96981, 98121, 98349, 98367, 98529, 98727, 98907, 98949, 98961, 210183, 210363, 210369, 210543, 210549, 210723, 210747, 210927, 210963.

Some larger examples :