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 A139999 #16 Sep 08 2022 08:45:34
%S A139999 3,443,467,587,683,947,1307,1523,1787,1907,2003,2027,2267,2843,2963,
%T A139999 3083,3323,3347,3947,4283,4547,4643,5003,5483,5867,5987,6323,6803,
%U A139999 7043,7187,7283,7307,7547,7643,7907,8123,8243,8363,8387,8627,8867
%N A139999 Primes of the form 3x^2+440y^2.
%C A139999 Discriminant=-5280. See A139827 for more information.
%H A139999 Vincenzo Librandi and Ray Chandler, <a href="/A139999/b139999.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]
%H A139999 N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)
%F A139999 Except for 3, the primes are congruent to {203, 323, 443, 467, 587, 683, 707, 947, 1043, 1307} (mod 1320).
%t A139999 QuadPrimes2[3, 0, 440, 10000] (* see A106856 *)
%o A139999 (Magma) [3] cat [p: p in PrimesUpTo(12000) | p mod 1320 in [203, 323, 443, 467, 587, 683, 707, 947, 1043, 1307]]; // _Vincenzo Librandi_, Aug 03 2012
%K A139999 nonn,easy
%O A139999 1,1
%A A139999 _T. D. Noe_, May 02 2008