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A259083
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a(n) = largest k such that the decimal representation of 7^k does not contain the digit n.
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2
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OFFSET
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0,1
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COMMENTS
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These values are only conjectural.
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LINKS
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Popular Computing (Calabasas, CA), Two Tables, Vol. 1, (No. 9, Dec 1973), page PC9-16.
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CROSSREFS
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KEYWORD
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nonn,fini,full,base
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AUTHOR
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STATUS
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approved
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