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%I #6 Sep 08 2022 08:46:01
%S 11,67,179,347,571,1187,1579,2027,2531,5107,9587,10651,15467,16811,
%T 18211,21179,24371,33331,35291,37307,41507,43691,63179,65867,68611,
%U 71411,80147,89387,99131,105907,109379,116491,127579,147179
%N Primes of the form 7n^2 + 4.
%H Vincenzo Librandi, <a href="/A201605/b201605.txt">Table of n, a(n) for n = 1..10000</a>
%t Select[Table[7n^2+4,{n,0,1000}],PrimeQ]
%o (Magma) [a: n in [0..300] | IsPrime(a) where a is 7*n^2+4];
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Dec 03 2011
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