id:A113536 - OEIS Search Results

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Numbers n such that n^2 + k is prime, k=13 case.

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0, 2, 4, 10, 12, 16, 18, 28, 40, 42, 44, 46, 60, 68, 72, 82, 84, 88, 94, 108, 110, 114, 116, 122, 126, 142, 144, 152, 158, 180, 192, 194, 198, 200, 220, 222, 264, 266, 268, 282, 284, 296, 298, 332, 336, 340, 354, 378, 380, 418, 420, 430, 434, 446, 464, 466, 486 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`If n=40 then (n^2 + 13) = 1613 (prime).`
	MATHEMATICA	`With[{k=13}, Select[Range[1000], PrimeQ[ #^2+k]&]]`
	CROSSREFS	`Other cases: A005574 k=1, A067201 k=2, A049422 k=3, A007591 k=4, A078402 k=5, A114269-A114275 k=6-12.` `Sequence in context: A101519 A138940 A129412 this_sequence A081887 A085344 A047463` `Adjacent sequences: A113533 A113534 A113535 this_sequence A113537 A113538 A113539`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Jan 13 2006`
	EXTENSIONS	`Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 07 2008`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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