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A108420
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Numbers n such that n!! + prime(n) is prime.
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0
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3, 14, 20, 54, 56, 144, 206, 212, 436, 1610, 4450, 4512, 5202, 6684
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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[1610], PrimeQ[ #!! - Prime[ # ]] &]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Amineh Farzannia (afarzannia(AT)yahoo.com), Jul 06 2005
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EXTENSIONS
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STATUS
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approved
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