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A078744
Numbers n such that { (product of all the composite numbers <= n) + the n-th prime } is prime.
+0
2
1, 4, 6, 7, 8, 13, 17, 18, 21, 41, 86, 101, 144, 368, 1232, 1713
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Maintained by
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.
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