id:A081546 - OEIS Search Results

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Smallest prime which is 1 more than the product of n (not necessarily distinct) composite numbers.

+0
4

2, 5, 17, 97, 257, 3457, 40961, 65537, 786433, 5308417, 14155777, 104857601 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(0) = 1 + 1 = 2, a(3) = 446 + 1 = 97.`
	CROSSREFS	`Cf. A081545.` `Sequence in context: A016121 A026822 A059248 this_sequence A103511 A097980 A074046` `Adjacent sequences: A081543 A081544 A081545 this_sequence A081547 A081548 A081549`
	KEYWORD	`hard,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 01 2003`
	EXTENSIONS	`More terms from Michel ten Voorde (seqfan(AT)tenvoorde.org) Jun 13 2003`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.