A027863 - OEIS

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A027863

Numbers n such that n^2 + (n+1)^2 + (n+2)^2 is prime.

0, 2, 6, 12, 14, 24, 34, 52, 56, 62, 66, 76, 86, 94, 96, 122, 124, 132, 152, 154, 164, 182, 184, 194, 206, 216, 226, 244, 252, 254, 262, 272, 276, 294, 322, 336, 342, 362, 364, 376, 384, 404, 406, 416, 436, 446, 464, 472, 486, 502, 546, 556, 584, 604, 612, 616 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`P. De Geest, World!Of Numbers`
	MATHEMATICA	`Select[ Range[ 7! ], PrimeQ[ #^2+(#+1)^2+(#+2)^2 ]& ] [ From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 20 2009 ]`
	PROG	`(MAGMA) [n: n in [0..1000] \|IsPrime(n^2+(n+1)^2+(n+2)^2)] [From V. Librandi, Nov 18 2010]`
	CROSSREFS	`Sequence in context: A190503 A140760 A161922 * A152301 A152389 A114103` `Adjacent sequences: A027860 A027861 A027862 * A027864 A027865 A027866`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified February 12 21:29 EST 2012. Contains 205433 sequences.