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Search: id:A087280
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| A087280 |
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Solutions n of max(m+d(m))=n+2 for m<n; d(m) is the number of divisors of m. |
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+0
1
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OFFSET
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1,1
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COMMENT
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It is not known if there are other terms. There are no more terms < 10^10.
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REFERENCES
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R. K. Guy, Unsolved Problems in Number Theory, section B8.
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EXAMPLE
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The largest value of m+d(m) for m < n=8 is 6+d(6)=10 = n+2, so 8 is in the sequence.
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CROSSREFS
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Sequence in context: A065528 A050936 A084146 this_sequence A022413 A078781 A022160
Adjacent sequences: A087277 A087278 A087279 this_sequence A087281 A087282 A087283
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KEYWORD
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nonn
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AUTHOR
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Jud McCranie (j.mccranie(AT)comcast.net), Aug 28 2003
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