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A028886 Primes of the form n^2 - 8. 3
17, 41, 73, 113, 281, 353, 433, 521, 617, 953, 1217, 1361, 2017, 2393, 2593, 2801, 4217, 4481, 6553, 7561, 8273, 8641, 10193, 10601, 13217, 13681, 14153, 14633, 15121, 16633, 17681, 18217, 20441, 21017, 21601, 22193, 25913, 26561, 29921 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..8000

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

MATHEMATICA

lst={}; Do[s=n^2; If[PrimeQ[p=s-8], AppendTo[lst, p]], {n, 7!}]; lst (* Vladimir Joseph Stephan Orlovsky, Sep 27 2008 *)

Select[Range[3, 1000]^2-8, PrimeQ] (* Vincenzo Librandi, Dec 01 2011 *)

PROG

(MAGMA) [a: n in [3..300] | IsPrime(a) where a is n^2-8]; // Vincenzo Librandi, Dec 01 2011

CROSSREFS

Sequence in context: A138005 A267421 A166147 * A146443 A110226 A054819

Adjacent sequences:  A028883 A028884 A028885 * A028887 A028888 A028889

KEYWORD

nonn,easy

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified January 22 22:38 EST 2018. Contains 298093 sequences.