id:A081942 - OEIS Search Results

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A081942

a(1) = 1, a(n) = smallest number greater than a(n-1) such that a(n-1)*a(n) + 1 is prime.

+0
4

1, 2, 3, 4, 7, 10, 13, 24, 25, 28, 34, 37, 40, 43, 46, 51, 56, 60, 67, 70, 79, 84, 87, 94, 105, 106, 120, 126, 130, 133, 136, 147, 148, 151, 156, 161, 162, 163, 166, 171, 176, 177, 184, 190, 193, 204, 208, 211, 228, 234, 239, 242, 248, 252, 256, 262, 265, 270 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A081943.` `Sequence in context: A073149 A065461 A008824 this_sequence A072958 A062426 A035565` `Adjacent sequences: A081939 A081940 A081941 this_sequence A081943 A081944 A081945`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 02 2003`
	EXTENSIONS	`More terms from Gabriel Cunningham (gcasey(AT)mit.edu), Apr 08 2003`

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

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