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A367102
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Numbers k such that k^4*2^k - 1 is a prime.
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5
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3, 29, 43, 83, 133, 209, 271, 329, 415, 727, 2437, 5673, 6879, 7813, 8125, 11931, 29433, 29491, 38397, 91141, 99459, 110935, 127247
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Range[6000], PrimeQ[#^4*2^# - 1] &] (* Amiram Eldar, Nov 05 2023 *)
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PROG
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(Magma) [k: k in [1..500] | IsPrime(k^4*2^k-1)];
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CROSSREFS
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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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