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%I #6 Sep 08 2022 08:46:01
%S 5,13,37,293,397,653,2053,3533,3877,5413,6277,6733,10957,14797,15493,
%T 19213,23333,25997,30757,36997,48677,55117,56453,69197,75277,76837,
%U 86533,98573,100357,109517,117133,129037,139397,143653,154573
%N Primes of the form 8n^2 + 5.
%H Vincenzo Librandi, <a href="/A201612/b201612.txt">Table of n, a(n) for n = 1..5000</a>
%t Select[Table[8n^2+5,{n,0,1000}],PrimeQ]
%o (Magma) [a: n in [0..300] | IsPrime(a) where a is 8*n^2+5];
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Dec 03 2011
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