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A098863
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Numbers k such that (6^k)*(2^k - 1) - 1 is prime.
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1
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1, 2, 3, 7, 8, 152, 206, 686, 1194, 1610, 10886, 20516
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OFFSET
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1,2
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COMMENTS
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All terms under 5000 correspond to certified primes. (Primo 2.2.0 beta). - Ryan Propper, Apr 03 2006
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LINKS
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PROG
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(Magma) [k: k in [1..300] | IsPrime((6^k)*(2^k-1)-1)]; // Jinyuan Wang, Mar 19 2020
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CROSSREFS
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Cf. A098864 ((6^k)*(2^k - 1) + 1 is prime).
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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