id:A138303 - OEIS Search Results

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Numbers n such that n*(n+1)-1 and n*(n+1)+1 are twin primes and n*(n+3)-1 and n*(n+3)+1 are also twin primes.

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3, 15, 495, 624, 1308, 1365, 1494, 1659, 1848, 6363, 8064, 12780, 13908, 14013, 16530, 18018, 18654, 28575, 30885, 31020, 38130, 43674, 48735, 50379, 57198, 60915, 61059, 62943, 75768, 76359, 76569, 80949, 81075, 83028, 84045, 86085, 88185, 104664, 105588 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Pierre CAMI, Table of n, a(n) for n = 1..500`
	EXAMPLE	`34=12: 11 and 13 are twin primes; 36=18 and 17 and 19 are also twin primes.`
	CROSSREFS	`Sequence in context: A103031 A012474 A122579 this_sequence A167220 A077399 A013409` `Adjacent sequences: A138300 A138301 A138302 this_sequence A138304 A138305 A138306`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Mar 13 2008`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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