id:A091666 - OEIS Search Results

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Least k such that P=p(n)^2 + k is prime, where p(i) denotes ith-prime.

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1, 2, 4, 4, 6, 4, 4, 6, 12, 12, 6, 4, 12, 12, 4, 10, 10, 6, 4, 10, 4, 6, 10, 6, 4, 10, 4, 18, 6, 12, 10, 6, 4, 12, 28, 6, 10, 4, 4, 18, 10, 10, 12, 4, 12, 6, 10, 10, 10, 12, 4, 10, 18, 28, 18, 22, 6, 12, 4, 16, 18, 4, 4, 10, 4, 4 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`p(3)=5, 5*5=25 for k=4 25+4=29 prime, k=4 is the least k with p(3)^2 + k prime`
	CROSSREFS	`Cf. A062772.` `Cf. A001248, A062772, A054271, A133517, A133518, A133519, A133520, A133521, A133522, (A001223).` `Sequence in context: A121528 A160904 A049782 this_sequence A084290 A062011 A132857` `Adjacent sequences: A091663 A091664 A091665 this_sequence A091667 A091668 A091669`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Pierre CAMI (colettecami(AT)aol.com), Jan 27 2004`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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