id:A103557 - OEIS Search Results

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Least k such that k*((p(n)#)^2)-1 and k*((p(n)#)^2)+1 are twin primes.

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1, 2, 7, 6, 6, 104, 152, 116, 181, 6, 78, 89, 85, 262, 133, 57, 77, 35, 237, 140, 315, 397, 663, 48, 1135, 382, 318, 261, 542, 352, 120, 31, 1430, 553, 43, 913, 1235, 122, 1008, 602, 222, 1562, 255 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`1((23)^2)-1=35 composite` `2((23)^2)-1=71 prime 2((23)^2)+1=73 prime twin of 71 so a(2)=2`
	CROSSREFS	`Sequence in context: A047224 A127817 A047232 this_sequence A138283 A117968 A089417` `Adjacent sequences: A103554 A103555 A103556 this_sequence A103558 A103559 A103560`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Mar 23 2005`

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.

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