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Search: id:A039779
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A039779 Numbers n such that phi(n) is equal to A008473(n). +0
1
54, 99, 112, 540, 3344, 4743, 6720, 7644, 8307, 11088, 12852, 15225, 20300, 22320, 83160, 86304, 94944, 129504, 160208, 186992, 200640, 205712, 207264, 266266, 280592, 331731, 364941, 383724 (list; graph; listen)
OFFSET

1,1

EXAMPLE

phi(54)=18, 54=2^1*3^3, (2+1)*(3+3)=18.

CROSSREFS

Cf. A000010, A008473.

Sequence in context: A045933 A088986 A118150 this_sequence A044143 A044524 A095962

Adjacent sequences: A039776 A039777 A039778 this_sequence A039780 A039781 A039782

KEYWORD

nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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