id:A049422 - OEIS Search Results

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Numbers n such that n^2+3 is prime.

+0
16

0, 2, 4, 8, 10, 14, 22, 28, 38, 50, 52, 62, 64, 70, 74, 76, 92, 94, 106, 112, 122, 130, 134, 140, 146, 154, 158, 160, 172, 178, 218, 230, 242, 244, 248, 256, 274, 286, 298, 304, 316, 322, 326, 340, 350, 356, 364, 368, 398, 406, 416, 424, 430, 434, 440, 458, 470 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Zak Seidov, Table of n, a (n) for n = 1..1000` `Eric Weisstein's World of Mathematics, Near-Square Prime`
	EXAMPLE	`f(4) = 4^2+3=19 which is prime.`
	MATHEMATICA	`lst={}; Do[If[PrimeQ[n^2+3], Print[n]; AppendTo[lst, n]], {n, 10^5}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 21 2008]`
	CROSSREFS	`Sequence in context: A088967 A091992 A089033 this_sequence A067925 A102431 A076919` `Adjacent sequences: A049419 A049420 A049421 this_sequence A049423 A049424 A049425`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Jobling (paul.jobling(AT)whitecross.com)`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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