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%I #6 Sep 08 2022 08:46:01
%S 193,281,641,4993,7193,7681,9241,12161,13441,16193,16921,19993,23321,
%T 28793,29761,34841,43801,49921,51193,57793,63361,64793,73721,78401,
%U 98561,107641,123001,133121,135193,168193,177601,192193,194681
%N Primes of the form 8n^2 - 7.
%H Vincenzo Librandi, <a href="/A201858/b201858.txt">Table of n, a(n) for n = 1..5000</a>
%t Select[Table[8n^2-7,{n,1,300}],PrimeQ]
%o (Magma) [a: n in [1..400] | IsPrime(a) where a is 8*n^2-7];
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Dec 06 2011
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