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 A106971 #17 Aug 05 2014 14:16:29 %S A106971 5,89,101,173,461,593,773,1013,1049,1193,1277,1301,1601,1697,1889, %T A106971 1973,2309,2393,2441,2621,2729,2957,3617,3701,3797,3881,4157,4289, %U A106971 4409,4457,4721,4793,4973,5081,5333,5381,5897,6053,6221,6317,6473 %N A106971 Primes of the form 5x^2+4xy+5y^2, with x and y nonnegative. %C A106971 Discriminant=-84. %H A106971 Vincenzo Librandi and Ray Chandler, <a href="/A106971/b106971.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106971 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 A106971 QuadPrimes2[5, 4, 5, 10000] (* see A106856 *) %K A106971 nonn,easy %O A106971 1,1 %A A106971 _T. D. Noe_, May 09 2005