id:A085958 - OEIS Search Results

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Primes p such that 8p +1 and (p-1)/8 are primes.

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17, 137, 809, 857, 3209, 6569, 7577, 9209, 11897, 16217, 17657, 19289, 21929, 23417, 30809, 35129, 37529, 41849, 46889, 53609, 56009, 66377, 70457, 74729, 76697, 78809, 80537, 88937, 91577, 95177, 96857, 103289, 129497, 141257, 165449, 166169 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`137 is a term as (137-1)/8 = 17 and 137*8 +1 = 1097 both are primes.`
	MATHEMATICA	`Prime[ Select[ Range[15208], PrimeQ[ 8Prime[ # ] + 1] && PrimeQ[(Prime[ # ] - 1)/8] & ]]`
	CROSSREFS	`Cf. A085956, A085957.` `Sequence in context: A022612 A060220 A041550 this_sequence A120784 A099922 A008417` `Adjacent sequences: A085955 A085956 A085957 this_sequence A085959 A085960 A085961`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 16 2003`
	EXTENSIONS	`Edited and extended by Zak Seidov (zakseidov(AT)yahoo.com) and Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 18 2003`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

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