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A030470 Numbers n such that n concatenated with n+1, n+2, n+3 is prime. +0
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4, 14, 20, 34, 58, 64, 118, 140, 148, 176, 196, 218, 220, 236, 238, 268, 278, 286, 316, 334, 374, 386, 398, 428, 430, 436, 446, 460, 470, 496, 508, 514, 550, 566, 568, 590, 610, 616, 634, 644, 670, 674, 688, 706, 718, 728, 740, 746, 764, 770 (list; graph; listen)
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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