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A050413
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Numbers k such that 74*2^k-1 is prime.
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2
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OFFSET
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1,2
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COMMENTS
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REFERENCES
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Computed by Joe K. Crump (joecr(AT)carolina.rr.com) and (mostly) by David Broadhurst.
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LINKS
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PROG
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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EXTENSIONS
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David Broadhurst, Dec 26 1999 reports that primality up to n=51476 is now proved, using Yves Gallot's proth.exe.
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STATUS
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approved
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