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A028877
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Primes of form n^2 - 5.
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1
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11, 31, 59, 139, 191, 251, 479, 571, 1019, 1151, 1291, 1439, 1759, 1931, 2111, 2699, 3359, 4091, 5179, 5471, 6079, 6719, 8831, 10399, 12539, 13451, 14879, 17419, 20731, 23099, 26891, 27551, 28219, 30271, 30971, 33119, 33851, 34591
(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..8000
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[s = n^2; If[PrimeQ[p = s - 5], AppendTo[lst, p]], {n, 6!}]; lst (* From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 26 2008 *)
Select[Table[n^2 - 5, {n, 200}], PrimeQ] (* From Harvey P. Dale, Jan 17 2011 *)
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PROG
| (MAGMA) [a: n in [1..300] | IsPrime(a) where a is n^2-5]; // Vincenzo Librandi, Dec 01 2011
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CROSSREFS
| Sequence in context: A057628 A144364 A031372 * A087394 A196117 A040162
Adjacent sequences: A028874 A028875 A028876 * A028878 A028879 A028880
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KEYWORD
| nonn
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com)
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