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A109617
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Numbers n such that (10's complement factorial of n) - 1 is prime.
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1
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OFFSET
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1,1
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COMMENTS
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Larger values not certified.
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LINKS
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EXAMPLE
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a(2)=3 because (10-3)*(10-2)*(10-1) - 1 = 503 is prime.
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CROSSREFS
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KEYWORD
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more,nonn,base
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AUTHOR
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STATUS
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approved
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