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Search: id:A067204
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A067204 Numbers n such that sigma(sigma(n))==phi(n) ( mod sigma(n) ). +0
1
2, 26, 77, 85, 194, 335, 707, 1350, 2443, 2639, 9158, 9602, 15238, 16625, 19698, 23199, 24416, 52328, 54663, 56927, 64206, 67226, 69875, 82235, 100837, 104489, 136213, 150040, 161268 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Adjacent sequences: A067201 A067202 A067203 this_sequence A067205 A067206 A067207

Sequence in context: A084298 A001772 A132861 this_sequence A120551 A120547 A132470

KEYWORD

nonn

AUTHOR

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

page 1

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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