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Search: id:A056012
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A056012 Numbers n such that n | Sigma(n) + d(n) + Phi(n). +0
1
1, 2, 4, 6, 90, 408, 586, 2200352, 11524640 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Do[If[Mod[DivisorSigma[1, n]+DivisorSigma[0, n]+EulerPhi[n], n]==0, Print[n]], {n, 1, 10^7}]

CROSSREFS

Sequence in context: A066220 A009257 A098757 this_sequence A066719 A033319 A090315

Adjacent sequences: A056009 A056010 A056011 this_sequence A056013 A056014 A056015

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 24 2000

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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