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A136240 Numbers n among A006093 such that n^2 + n + 1 is prime. +0
2
1, 2, 6, 12, 66, 78, 138, 150, 162, 192, 336, 348, 378, 456, 540, 612, 642, 726, 768, 918, 990, 1020, 1092, 1116, 1200, 1230, 1380, 1422, 1548, 1566, 1596, 1620, 1692, 1746, 1788, 1800, 1932, 1986, 2010, 2016, 2112, 2136, 2142, 2238, 2280, 2556, 2646 (list; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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