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 A033244 #22 Jul 08 2025 19:47:59 %S A033244 73,277,397,853,877,1021,1093,1117,1129,1153,1237,1297,1669,1741,1777, %T A033244 1789,2221,2473,2557,2677,2749,2953,3109,3121,3169,3301,3313,3433, %U A033244 3637,3709,3853,4057,4129,4441 %N A033244 Primes of form x^2+69*y^2. %D A033244 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033244 Vincenzo Librandi and Ray Chandler, <a href="/A033244/b033244.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033244 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 A033244 QuadPrimes2[1, 0, 69, 10000] (* see A106856 *) %K A033244 nonn,easy %O A033244 1,1 %A A033244 _N. J. A. Sloane_