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 A033258 #22 Jul 08 2025 19:49:47 %S A033258 107,127,191,347,373,389,491,653,823,883,919,991,1093,1303,1453,1481, %T A033258 1733,2027,2081,2207,2213,2297,2311,2339,2389,2417,2531,2591,2851, %U A033258 3137,3299,3301,3319,3389,3571,3613 %N A033258 Primes of form x^2+91*y^2. %D A033258 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033258 Vincenzo Librandi and Ray Chandler, <a href="/A033258/b033258.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033258 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 A033258 QuadPrimes2[1, 0, 91, 10000] (* see A106856 *) %K A033258 nonn %O A033258 1,1 %A A033258 _N. J. A. Sloane_