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A032618
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Numbers n such that n concatenated with n + 3 is a prime.
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1
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4, 8, 10, 16, 44, 46, 56, 58, 68, 74, 86, 94, 98, 100, 104, 106, 136, 140, 148, 154, 158, 160, 166, 176, 184, 194, 206, 230, 244, 250, 254, 260, 266, 268, 274, 286, 296, 308, 310, 328, 338, 344, 346, 370, 380, 388, 410, 416, 430, 434, 436, 440, 448, 460
(list; graph; refs; listen; history; internal format)
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