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 A033218 #22 Jul 08 2025 19:44:55 %S A033218 107,113,251,283,467,523,641,659,857,859,937,1091,1193,1283,1297,1459, %T A033218 1499,1777,1889,2003,2083,2129,2131,2161,2393,2441,2467,2609,2617, %U A033218 2731,2753,3041,3067,3251,3259 %N A033218 Primes of form x^2+26*y^2. %D A033218 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033218 Vincenzo Librandi and Ray Chandler, <a href="/A033218/b033218.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033218 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 A033218 QuadPrimes2[1, 0, 26, 10000] (* see A106856 *) %K A033218 nonn,easy %O A033218 1,1 %A A033218 _N. J. A. Sloane_