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A020609
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Smallest nonempty set S containing prime divisors of 7k+4 for each k in S.
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0
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3, 5, 11, 13, 19, 23, 107, 137, 251, 457, 587, 3203
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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STATUS
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approved
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