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A028876
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Numbers n such that n^2 - 5 is prime.
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0
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4, 6, 8, 12, 14, 16, 22, 24, 32, 34, 36, 38, 42, 44, 46, 52, 58, 64, 72, 74, 78, 82, 94, 102, 112, 116, 122, 132, 144, 152, 164, 166, 168, 174, 176, 182, 184, 186, 188, 198, 204, 212, 222, 226, 232, 234, 236, 252, 262, 264, 278, 284, 288, 292, 298, 302, 318, 324
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| P. De Geest, Palindromic Quasipronics of the form n(n+x)
Eric Weisstein's World of Mathematics, Near-Square Prime
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MATHEMATICA
| lst={}; Do[p=n^2-5; If[PrimeQ[p], AppendTo[lst, n]], {n, 0, 6!, 1}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 27 2009]
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PROG
| (MAGMA) [n: n in [2..1000] |IsPrime(n^2 - 5 )] [From Vincenzo Librandi, Nov 18 2010]
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CROSSREFS
| Sequence in context: A047407 A090697 A107303 * A053579 A074121 A175088
Adjacent sequences: A028873 A028874 A028875 * A028877 A028878 A028879
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KEYWORD
| nonn
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com)
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