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A076196
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Numbers k such that k!! + 2^9 is prime.
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12
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7, 13, 15, 19, 25, 133, 135, 199, 223, 297, 299, 511, 15263, 16491, 18967, 32455
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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Select[Range[33000], PrimeQ[#!!+2^9]&] (* Harvey P. Dale, Mar 29 2019 *)
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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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