A098268 - OEIS

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A098268

Unique prime factors of 2^n+1 are of the form kn+1. These are the values for k.

2, 2, 0, 4, 2, 2, 6, 32, 2, 4, 62, 20, 210, 2, 8, 22, 4096, 2570, 2, 6, 9198, 3084, 258, 18, 96, 121574, 4, 28, 10, 162, 2, 6, 62, 3230, 563940, 2, 104592, 2, 44, 23091222 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`The values for 2^n+1 are in [A098267]. In this sequence where a(n) has more than one k value they are separated with commas. See [A097406 & A097407]`
	CROSSREFS	`Sequence in context: A201396 A005881 A144458 * A128585 A181615 A141333` `Adjacent sequences: A098265 A098266 A098267 * A098269 A098270 A098271`
	KEYWORD	`nonn`
	AUTHOR	`Marco Matosic (marcomatosic(AT)hotmail.com), Sep 01 2004`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.