%I #6 Sep 08 2022 08:46:01
%S 3,59,19211,56003,275131,384107,448003,596291,1365787,1668299,5814091,
%T 7000003,14680067,25565851,35619139,43606531,56000003,72521627,
%U 106770947,140865539,185245147,196661251,208537003,332065499,337599811
%N Primes of the form 7n^3+3.
%H Vincenzo Librandi, <a href="/A201184/b201184.txt">Table of n, a(n) for n = 1..2300</a>
%t Select[Table[7n^3+3,{n,0,6000}],PrimeQ]
%o (Magma) [a: n in [0..400] | IsPrime(a) where a is 7*n^3+3]
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Nov 29 2011