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Search: id:A074964
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A074964 Numbers n such that Max ( sigma(x*y) : 1<=x<=n, 1<=y<=n ) = sigma(n^2). +0
1
1, 2, 3, 4, 6, 8, 12, 18, 24, 60 (list; graph; listen)
OFFSET

1,2

COMMENT

Sequence is probably finite.

CROSSREFS

Sequence in context: A074733 A001461 A048597 this_sequence A017822 A018465 A127107

Adjacent sequences: A074961 A074962 A074963 this_sequence A074965 A074966 A074967

KEYWORD

easy,more,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 05 2002

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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