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A115158
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Number of divisors of A006558(n).
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1
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OFFSET
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1,2
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COMMENTS
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a(n) is divisible by 3 for n > 7.
More generally, a(n) is divisible by m for all n >= 2^m. - Max Alekseyev, Aug 05 2015
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LINKS
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EXAMPLE
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phi(33) = phi(34) = phi(35) = 4, so a(3)=4.
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CROSSREFS
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KEYWORD
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nonn,more,hard
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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