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A028883
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Primes of form n^2 - 7.
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4
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2, 29, 137, 317, 569, 1289, 2297, 2909, 3593, 4349, 8093, 9209, 11657, 17417, 19037, 24329, 26237, 30269, 34589, 36857, 41609, 46649, 49277, 51977, 57593, 60509, 72893, 93629, 101117, 108893, 129593, 133949, 147449, 152093, 166457
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 1..3000
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-7], AppendTo[lst, p]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 26 2008]
Select[Range[3, 410]^2-7, PrimeQ] (* From Harvey P. Dale, Sep 20 2011 *)
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PROG
| (MAGMA) [a: n in [3..500] | IsPrime(a) where a is n^2-7]; // Vincenzo Librandi, Dec, 01 2011
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CROSSREFS
| Sequence in context: A123004 A062618 A128842 * A024200 A132412 A009772
Adjacent sequences: A028880 A028881 A028882 * A028884 A028885 A028886
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KEYWORD
| nonn,easy
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com)
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