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A028880
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Primes of form n^2 - 6.
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1
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3, 19, 43, 163, 283, 523, 619, 2203, 2803, 3019, 4219, 4483, 5323, 5923, 6883, 7219, 9403, 11443, 12763, 13219, 15619, 17683, 20443, 21019, 24019, 27883, 34963, 37243, 38803, 41203, 42019, 46219, 55219, 69163, 75619, 85843, 100483
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Also, primes of the form 4*n^2+4*n-5 (n>0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 05 2010]
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LINKS
| P. De Geest, Palindromic Quasipronics of the form n(n+x)
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MATHEMATICA
| lst={}; Do[s=n^2; If[PrimeQ[p=s-6], AppendTo[lst, p]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 26 2008]
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PROG
| (MAGMA) [ a: n in [1..250] | IsPrime(a) where a is 4*n^2+4*n-5 ] [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 05 2010]
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CROSSREFS
| Sequence in context: A100694 A146664 A103176 * A162905 A201875 A063553
Adjacent sequences: A028877 A028878 A028879 * A028881 A028882 A028883
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KEYWORD
| nonn
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com)
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