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Search: id:A002644
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| A002644 |
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Numbers n such that (n^2 + n + 1)/21 is prime.
(Formerly M5000 N1426)
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| 16, 25, 37, 46, 58, 88, 109, 130, 142, 151, 184, 193, 205, 247, 268, 298, 310, 319, 331, 340, 382, 394, 403, 415, 424, 457, 478, 487, 541, 550, 604, 613, 688, 697, 709, 730, 739, 751, 760, 793, 844, 865, 886, 907, 970, 1012, 1045, 1054, 1066, 1117, 1138
(list; graph; listen)
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