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A157333
Least j such that 6*p(j)*M(n)-1 is prime with p(j)=j-th prime and M(n) = Mersenne prime
+0
1
2, 1, 2, 1, 4, 3, 12, 31, 2, 14, 19, 15, 17, 467, 37, 111, 1382, 4830, 276, 1962, 360, 1749, 2857, 17253, 9414, 11974, 30167, 18822, 21387, 24721
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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