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Cunningham n.  and  unprimeable n.

First numbers that belong to both sets:

325, 530, 624, 626, 840, 842, 1330, 1332, 1680, 1682, 1765, 1850, 2186, 2188, 2196, 2198, 2400, 2402, 3248, 3480, 3482, 3970, 4760, 4762, 5040, 5042, 6725, 7775, 8650, 9215, 9260, 9262, 10200, 10202, 10405, 10815, 11450, 11665, 12770, 12995, 14160, 14162, 14640, 14642, 16806, 16808, 17425, 17690, 18768, 19045, 19320, 19322, 20450, 21905, 22200, 22202, 23105, 23408, 24388, 24648, 25280, 25282, 25920, 25922, 27224, 27226, 28560, 28562, 29790, 29792, 29930, 30624, 30626, 32040, 32042, 32760, 32762, 33125, 34224, 34226, 34970, 35345, 36480, 36482, 36865, 38024, 38026, 38415, 38810, 40400, 40402, 42874, 42876, 43680, 43682, 44520, 44522, 44945, 45795, 46655, 49285, 51985, 52440, 52442, 53360, 53362, 53825, 56645, 57120, 57122, 58080, 58082, 59048, 59318, 59320, 60515, 61010, 63000, 63002, 63505, 66050, 67080, 67082, 68120, 68122, 68645, 69170, 73440, 73442, 73985, 76175, 76728, 77285, 78960, 78962, 79506, 79508, 79525, 80088, 80090, 82945, 83520, 83522, 84680, 84682, 85185, 85265, 86435, 87024, 87026, 88208, 89400, 89402, 90600, 90602, 91205, 93024, 93026, 94248, 94865, 96720, 96722, 97335, 97345, 101125, 101760, 101762, 103822, 103824, 104330, 105624, 105626, 111555, 112895, 113570, 114245, 114920, 114922, 116280, 116282, 118335, 119715, 121105, 121800, 121802, 123905, 124610, 128165, 128880, 128882, 130320, 130322, 131768, 132650, 132652, 133224, 133226, 133955, 137640, 137642, 142130, 142885, 143640, 143642, 145160, 145162, 145925, 146690, 150545, 151320, 151322, 152880, 152882, 153665, 154448, 156024, 156026, 157465, 157608, 157610, 161605, 162408, 165648, 166374, 166376, 166465, 167280, 167282, 168920, 168922, 169745, 170568, 171395, 173888, 175560, 175562, 175615, 177146, 177148, 177240, 177242, 178085, 181475, 182328, 183185, 185192, 185194, 187488, 187490, 190968, 191845, 192720, 192722, 195365, 196250, 198024, 198026, 198915, 200705, 201600, 201602, 203400, 203402, 205378, 205380, 206115, 208850, 210680, 210682, 212520, 212522, 216224, 216226, 218090, 219025, 219960, 219962, 223728, 223730, 226980.

Some larger examples :