id:A046966 - OEIS Search Results

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a(n) = smallest number > a(n-1) such that a(1)*a(2)*...*a(n) + 1 is prime.

+0
5

1, 2, 3, 5, 6, 9, 12, 16, 22, 25, 29, 31, 35, 47, 57, 61, 66, 79, 81, 108, 114, 148, 163, 172, 185, 198, 203, 205, 236, 265, 275, 282, 294, 312, 344, 359, 377, 397, 398, 411, 427, 431, 493, 512, 589, 647, 648, 660, 708, 719, 765, 887, 911, 916, 935, 1062, 1093 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`H. Dubner, Recursive Prime Generating Sequences, Table 4 pp. 173 Journal of Recreational Mathematics 29(3) 1998 Baywood NY.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..200`
	EXAMPLE	`123*5 + 1 = 31 is prime.`
	CROSSREFS	`Cf. A046972.` `Sequence in context: A008768 A067593 A084993 this_sequence A035948 A094873 A018126` `Adjacent sequences: A046963 A046964 A046965 this_sequence A046967 A046968 A046969`
	KEYWORD	`nonn,nice`
	AUTHOR	`G. L. Honaker, Jr. (honak3r(AT)bvunet.net)`
	EXTENSIONS	`More terms from Jason Earls (jcearls(AT)cableone.net), Jan 25 2002` `Definition corrected by T. D. Noe, Feb 14 2007`

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.

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