id:A055690 - OEIS Search Results

Search: id:A055690

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7^n (mod n-1) = -1.

+0
1

2, 3, 5, 6, 9, 26, 45, 66, 87, 345, 765, 906, 3926, 8405, 11766, 23805, 35145, 42966, 59685, 95289, 317250, 413325, 416757, 722745, 770066, 890825, 938457, 1325826, 1921986, 3315378, 3675555, 5299250, 6791445, 6899685, 9371826, 10892313 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Do[If[PowerMod[7, n, n-1]==n-2, Print[n]], {n, 2, 2*10^7}]`
	CROSSREFS	`Adjacent sequences: A055687 A055688 A055689 this_sequence A055691 A055692 A055693` `Sequence in context: A124253 A079371 A131761 this_sequence A108861 A051896 A061939`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2000`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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