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A007638 3n^2 - 3n + 23 is composite.
(Formerly M5129)
+0
1
23, 24, 28, 31, 39, 44, 45, 46, 47, 50, 52, 56, 57, 60, 63, 67, 69, 70, 71, 79, 80, 85, 86, 88, 89, 90, 92, 93, 96, 97, 102, 107, 108, 112, 115, 116, 118, 119, 121, 122, 123, 126, 128, 131, 134, 137, 138, 139, 143, 144, 145, 147, 148, 151, 153, 156, 157, 161, 162 (list; graph; listen)
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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


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