id:A084713 - OEIS Search Results

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Smallest prime of the form (2n-1)^k + 2, or 0 if no such number exists.

+0
5

3, 5, 7, 0, 11, 13, 0, 17, 19, 0, 23, 952809757913929, 0, 29, 31, 0, 1091, 37, 0, 41, 43, 0, 47, 885233716287722386108568808645559198522547790058305212262181780420828956357982973084581935827930464156048602918053397761948271781610736426217362565287242033121579185919812362859356307201329 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(3n+1) = 0, a(24) is a 189-digit number.`
	EXAMPLE	`a(12) = 952809757913927 = 23^11 + 2.`
	CROSSREFS	`Cf. A084714.` `Adjacent sequences: A084710 A084711 A084712 this_sequence A084714 A084715 A084716` `Sequence in context: A099744 A024601 A085090 this_sequence A084712 A031100 A031057`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 10 2003`
	EXTENSIONS	`Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 11, 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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