The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A014117 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A014117

Numbers n such that m^(n+1) == m (mod n) holds for all m.
(history; published version)

#110 by Sean A. Irvine at Tue Aug 20 15:49:25 EDT 2024

STATUS

proposed

approved

#109 by Thomas Ordowski at Mon Aug 05 15:37:09 EDT 2024

STATUS

editing

proposed

#108 by Thomas Ordowski at Mon Aug 05 15:37:02 EDT 2024

COMMENTS

Squarefree numbers n such that b^n == 1 (mod n^2) for every b coprime to n. Squarefree terms of A341858. - Thomas Ordowski, Aug 08 05 2024

STATUS

proposed

editing

#107 by Michel Marcus at Mon Aug 05 10:37:23 EDT 2024

STATUS

editing

proposed

#106 by Michel Marcus at Mon Aug 05 10:37:18 EDT 2024

LINKS

J. Jonathan Sondow and K. MacMillan, <a href="http://arxiv.org/abs/1011.2154">Reducing the Erdos-Moser equation 1^n + 2^n + … + k^n = (k+1)^n modulo k and k^2</a>, arXiv:1011.2154 [math.NT], 2010; see Prop. 2; Integers, 11 (2011), article A34.

STATUS

proposed

editing

#105 by Thomas Ordowski at Mon Aug 05 05:15:31 EDT 2024

STATUS

editing

proposed

#104 by Thomas Ordowski at Mon Aug 05 05:15:06 EDT 2024

CROSSREFS

Cf. A007018, A031971, A054377, A100016, A242927, A341858.

STATUS

proposed

editing

#103 by Thomas Ordowski at Mon Aug 05 05:11:55 EDT 2024

STATUS

editing

proposed

#102 by Thomas Ordowski at Mon Aug 05 05:10:42 EDT 2024

COMMENTS

Squarefree numbers n such that b^n == 1 (mod n^2) for every b coprime to n. Squarefree terms of A341858. - Thomas Ordowski, Jul Aug 08 2024

#101 by Thomas Ordowski at Mon Aug 05 05:09:18 EDT 2024

COMMENTS

Squarefree numbers n such that b^n == 1 (mod n^2) for every b coprime to n. Squarefree terms of A341858. - Thomas Ordowski, Jul 08 2024