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A063791
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Numbers n such that 2^(n+1) - n - 2 is prime.
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2
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3, 9, 13, 15, 25, 49, 55, 69, 115, 2071, 6249, 13669, 14215, 14625, 396127
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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REFERENCES
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Dean Hickerson, personal communication.
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LINKS
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FORMULA
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PROG
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(PARI) for(n=1, 5000, if(isprime(2^(n+1)-n-2), print(n)))
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008
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STATUS
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approved
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