A027756 - OEIS

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A027756

Numbers n such that n^2 + n + 7 is prime.

0, 2, 3, 5, 8, 9, 11, 12, 17, 18, 24, 26, 29, 30, 32, 33, 38, 39, 44, 50, 51, 57, 59, 65, 71, 74, 86, 89, 92, 95, 96, 99, 102, 108, 113, 122, 123, 128, 131, 134, 135, 137, 141, 143, 144, 156, 159, 164, 165, 170, 173, 176, 177, 180, 183, 198, 201, 206 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`P. De Geest, World!Of Numbers` `Harvey P. Dale, Table of n, a(n) for n = 1..1000`
	MATHEMATICA	`Select[Range[0, 250], PrimeQ[#^2+#+7]&] (* From Harvey P. Dale, Oct 10 2011 *)`
	PROG	`(MAGMA) [n: n in [0..250] \| IsPrime(n^2+n+7)]; [From V. Librandi, Nov 20 2010]`
	CROSSREFS	`Sequence in context: A113051 A047372 A096974 * A119863 A047254 A051214` `Adjacent sequences: A027753 A027754 A027755 * A027757 A027758 A027759`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified February 13 06:53 EST 2012. Contains 205451 sequences.