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A067192 Composite n such that sigma(n)==2 (mod phi(n)). +0
1
10, 20, 52, 232, 976, 1332, 65152 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A034087 A117562 A115045 this_sequence A030004 A131726 A166641

Adjacent sequences: A067189 A067190 A067191 this_sequence A067193 A067194 A067195

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 19 2002

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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