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 A033257 #22 Jul 08 2025 19:49:39 %S A033257 89,233,797,997,1201,1433,1877,2153,2381,2393,2549,2801,2917,2957, %T A033257 3229,3253,3301,3373,3449,3733,3989,4397,4673,4937,5261,5273,5393, %U A033257 5413,5657,5701,5981 %N A033257 Primes of form x^2+89*y^2. %D A033257 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033257 Vincenzo Librandi and Ray Chandler, <a href="/A033257/b033257.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033257 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 A033257 QuadPrimes2[1, 0, 89, 10000] (* see A106856 *) %K A033257 nonn,easy %O A033257 1,1 %A A033257 _N. J. A. Sloane_