%I #14 Sep 08 2022 08:45:40
%S 3,23,131,311,563,887,1283,2903,5171,7043,8087,9203,10391,12983,14387,
%T 19031,28211,34583,39191,41603,44087,46643,51971,57587,76163,86423,
%U 101111,108887,125303,129587,138371,142871,161591,171383,191831,197123
%N Primes of the form n^2 - 13.
%C Primes of the form 4n^2 - 8n - 9.
%H Vincenzo Librandi, <a href="/A154648/b154648.txt">Table of n, a(n) for n = 1..3000</a>
%e For n=3, a(3)=3; n=7, a(7)=131; n=241, a(241)=230387
%t Select[Range[4,1000]^2-13,PrimeQ]
%o (Magma) [a: n in [4..600] | IsPrime(a) where a is n^2-13];
%Y Cf. A154650
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Jan 18 2009
%E Edited by _N. J. A. Sloane_, Jun 23 2010
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