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Search: id:A121287
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A121287 Numbers such that Sigma(n)*UnitarySigma(n) is divible by UnitaryPhi(n)*n. +0
2
1, 6, 60, 140, 8190, 32760 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Cf. A121288.

Sequence in context: A137498 A036283 A126576 this_sequence A069072 A074441 A006741

Adjacent sequences: A121284 A121285 A121286 this_sequence A121288 A121289 A121290

KEYWORD

nonn

AUTHOR

Yasutsohi Kohmoto zbi74583(AT)boat.zero.ad.jp Sep 05 2006

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

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