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A027757 Numbers n such that n^2 + n + 9 is prime. +0
3
1, 4, 13, 16, 19, 25, 28, 43, 49, 55, 76, 79, 88, 106, 118, 121, 139, 145, 151, 154, 175, 190, 205, 208, 211, 235, 238, 253, 259, 268, 271, 301, 310, 370, 373, 376, 391, 400, 403, 415, 433, 445, 484, 490, 508, 511, 523, 544, 568, 580, 583, 589 (list; graph; listen)
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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