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A367421
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Numbers k such that k^5*2^k + 1 is a prime.
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3
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1, 41, 53, 231, 532, 1632, 1642, 9701, 13372, 19613, 25518, 31929
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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Select[Range[2000], PrimeQ[#^5*2^# + 1] &] (* Amiram Eldar, Nov 18 2023 *)
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PROG
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(Magma) [k: k in [1..1000] | IsPrime(k^5*2^k+1)];
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CROSSREFS
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Numbers k such that k^m*2^k + 1 is a prime: 0, 1, 2, 4, 8, 16, .. (m = 0), A005849 (m = 1), A058780 (m = 2), A357612 (m = 3), A366422 (m = 4), this sequence (m = 5).
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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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