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 A033223 #22 Jul 08 2025 19:45:30 %S A033223 43,59,83,137,257,307,331,563,569,577,593,659,761,769,859,971,977, %T A033223 1019,1097,1123,1249,1259,1291,1361,1531,1579,1657,1667,1747,1753, %U A033223 1787,1811,1913,1987,2027,2161,2243,2297 %N A033223 Primes of form x^2+34*y^2. %D A033223 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033223 Vincenzo Librandi and Ray Chandler, <a href="/A033223/b033223.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033223 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 A033223 QuadPrimes2[1, 0, 34, 10000] (* see A106856 *) %K A033223 nonn,easy %O A033223 1,1 %A A033223 _N. J. A. Sloane_