id:A111149 - OEIS Search Results

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Numbers n such that 5*n^2 + 9 is prime.

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2, 4, 10, 16, 26, 28, 38, 40, 44, 46, 58, 70, 80, 82, 88, 94, 98, 110, 116, 128, 130, 136, 140, 142, 154, 164, 178, 194, 200, 208, 212, 214, 220, 224, 236, 248, 250, 254, 256, 268, 278, 284, 298, 310, 320, 322, 332, 334, 338, 362, 392, 406, 422, 424, 458, 460 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`If n=154 then 5*n^2 + 9 = 118589 (prime).`
	MATHEMATICA	`Select[Range[500], PrimeQ[5*#^2 + 9] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 26 2006`
	CROSSREFS	`Sequence in context: A125245 A096689 A039682 this_sequence A123689 A137928 A144834` `Adjacent sequences: A111146 A111147 A111148 this_sequence A111150 A111151 A111152`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Oct 18 2005`
	EXTENSIONS	`More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 26 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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