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 A033248 #24 Jul 08 2025 19:48:26 %S A033248 83,521,691,787,1163,1193,1291,1409,1627,1913,1931,2099,2273,2347, %T A033248 2579,2689,2713,2833,2897,2939,2953,3067,3209,3323,3371,3691,3851, %U A033248 3889,4451,4513,4817,5099,5147,5153 %N A033248 Primes of the form x^2+74*y^2. %D A033248 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033248 Vincenzo Librandi and Ray Chandler, <a href="/A033248/b033248.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033248 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 A033248 QuadPrimes2[1, 0, 74, 10000] (* see A106856 *) %K A033248 nonn,easy %O A033248 1,1 %A A033248 _N. J. A. Sloane_