id:A049048 - OEIS Search Results

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n composite, k! == 1 (mod n) for some k > 2.

+0
2

119, 121, 221, 299, 391, 527, 901, 961, 1387, 1643, 1829, 2047, 2627, 3569, 5083, 9641, 9869, 10379, 11449, 16337, 16517, 18349, 22577, 23267, 23999, 25199, 27931, 28471, 31877, 32989, 33431, 37127, 40319, 47029, 48827, 50933, 52777, 55277 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjecture: If c is composite then n! == 1 (mod c) for at most one n >= 2. - David Wilson, Oct 06 2009`
	LINKS	`D. Wilson, Table of n, a(n) for n=0..1000`
	CROSSREFS	`Sequence in context: A013476 A013683 A071843 this_sequence A124074 A103154 A039557` `Adjacent sequences: A049045 A049046 A049047 this_sequence A049049 A049050 A049051`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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