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A028880 Primes of form n^2 - 6. +0
2
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; listen)
OFFSET

1,1

COMMENT

Also, primes of the form 4n^2+4n-5 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 16 2009]

LINKS

P. De Geest, Palindromic Quasipronics of the form n(n+x)

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]

CROSSREFS

Sequence in context: A100694 A146664 A103176 this_sequence A162905 A063553 A099007

Adjacent sequences: A028877 A028878 A028879 this_sequence A028881 A028882 A028883

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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