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aban n.  and  Chen prime

First numbers that belong to both sets:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 47, 53, 59, 67, 71, 83, 89, 101, 107, 109, 113, 127, 131, 137, 139, 149, 157, 167, 179, 181, 191, 197, 199, 211, 227, 233, 239, 251, 257, 263, 269, 281, 293, 307, 311, 317, 337, 347, 353, 359, 379, 389, 401, 409, 419, 431, 443, 449, 461, 467, 479, 487, 491, 499, 503, 509, 521, 541, 557, 563, 569, 571, 577, 587, 599, 617, 631, 641, 647, 653, 659, 677, 683, 701, 719, 743, 751, 761, 769, 787, 797, 809, 811, 821, 827, 829, 839, 857, 863, 877, 881, 887, 911, 919, 937, 941, 947, 953, 971, 977, 983, 991, 1000037, 1000099, 1000121, 1000187, 1000199, 1000211, 1000289, 1000313, 1000409, 1000427, 1000457, 1000507, 1000541, 1000577, 1000589, 1000619, 1000667, 1000679, 1000721, 1000763, 1000793, 1000847, 1000859, 1000889, 1000919, 1000931, 1000999, 2000081, 2000153, 2000177, 2000209, 2000261, 2000291, 2000309, 2000321, 2000351, 2000387, 2000519, 2000597, 2000639, 2000753, 2000807, 2000939, 3000029, 3000047, 3000077, 3000089, 3000131, 3000251, 3000299, 3000377, 3000479, 3000539, 3000617, 3000637, 3000757, 3000761, 3000779, 3000791, 3000869, 3000887, 3000929, 4000037, 4000079, 4000169, 4000301, 4000361, 4000439, 4000511, 4000541, 4000649, 4000679, 4000691, 4000747, 4000751, 4000853, 4000861, 4000889, 4000901, 4000907, 4000937, 4000949, 4000979, 4000987, 5000087, 5000111, 5000197, 5000311, 5000321, 5000381, 5000519, 5000549, 5000627, 5000657, 5000687, 5000689, 5000747, 5000759, 5000797, 5000927, 5000981, 5000993, 6000011, 6000101, 6000119, 6000149, 6000221, 6000277, 6000427, 6000431, 6000457, 6000479, 6000529, 6000551, 6000557, 6000569, 6000581, 6000611, 6000679, 6000803, 6000809, 6000821, 6000857, 6000893, 6000899, 6000961, 7000109, 7000121, 7000127, 7000129, 7000157, 7000181, 7000219, 7000241, 7000337, 7000391, 7000429, 7000517, 7000577, 7000661, 7000703, 7000727, 7000751, 7000793, 7000841, 7000969, 8000009, 8000051, 8000087, 8000099, 8000117, 8000171, 8000219, 8000231, 8000339, 8000357, 8000411, 8000441, 8000519, 8000579, 8000609, 8000747, 8000771, 8000789, 8000807.

Some larger examples :