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Primes of the form 7n^2 - 2.
1

%I #7 Sep 08 2022 08:46:01

%S 5,61,173,1181,3701,4373,5101,7621,8573,12941,14173,15461,19661,22741,

%T 29573,39373,48221,52981,80141,89381,112901,123821,131381,143141,

%U 163861,172541,190573,214373,219301,244781,288461,299941,354373

%N Primes of the form 7n^2 - 2.

%H Vincenzo Librandi, <a href="/A201848/b201848.txt">Table of n, a(n) for n = 1..5000</a>

%t Select[Table[7n^2-2,{n,1,1000}],PrimeQ]

%o (Magma) [a: n in [1..400] | IsPrime(a) where a is 7*n^2-2];

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Dec 06 2011