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 A139650 #23 Sep 08 2022 08:45:33
%S A139650 191,199,239,271,311,359,479,631,719,761,769,809,881,919,929,1031,
%T A139650 1049,1151,1201,1279,1289,1489,1559,1601,1721,1759,1831,1871,1879,
%U A139650 1999,2039,2129,2239,2281,2399,2441,2551,2591,2609,2671,2791,2969
%N A139650 Primes of the form x^2 + 190*y^2.
%C A139650 Discriminant = -760.
%C A139650 The primes are congruent to {1, 9, 39, 49, 81, 111, 119, 121, 159, 161, 169, 191, 199, 201, 239, 271, 289, 311, 321, 329, 351, 359, 391, 441, 479, 481, 511, 519, 529, 609, 631, 671, 681, 689, 719, 729} (mod 760).
%H A139650 Vincenzo Librandi and Ray Chandler, <a href="/A139650/b139650.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from Vincenzo Librandi).
%H A139650 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)
%t A139650 QuadPrimes2[1, 0, 190, 10000] (* see A106856 *)
%o A139650 (Magma) k:=190; [p: p in PrimesUpTo(3000) | NormEquation(k, p) eq true]; // _Bruno Berselli_, Jun 01 2016
%K A139650 nonn,easy
%O A139650 1,1
%A A139650 _T. D. Noe_, Apr 29 2008