This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A199365 #17 Sep 08 2022 08:46:00
%S A199365 3,7,503,4003,10979,32003,87811,157219,219491,470599,665503,821519,
%T A199365 907927,2048003,3764771,4370911,6572131,9410551,12194503,12448547,
%U A199365 14609059,16384003,25326503,30118147,34967267,44957699,48035959,55990087,58824503,62500003,63253007,131072003
%N A199365 Primes of the form 4n^3 + 3.
%C A199365 See comment in A199307.
%H A199365 Vincenzo Librandi, <a href="/A199365/b199365.txt">Table of n, a(n) for n = 1..3100</a>
%F A199365 a(n) = 4*A199364(n)^3 + 3.
%t A199365 Select[Table[4n^3+3,{n,0,6000}],PrimeQ] (* _Vincenzo Librandi_, Nov 27 2011 *)
%o A199365 (Magma) [a: n in [0..300] | IsPrime(a) where a is 4*n^3+3]; // _Vincenzo Librandi_, Nov 27 2011
%Y A199365 Cf. A199307, A199364.
%K A199365 nonn
%O A199365 1,1
%A A199365 _N. J. A. Sloane_, Nov 05 2011
%E A199365 First term inserted by _Vincenzo Librandi_, Nov 27 2011