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 A107009 #17 Aug 05 2014 14:16:30 %S A107009 5,11,53,71,89,137,191,257,311,353,389,419,443,467,521,647,683,797, %T A107009 863,929,977,1013,1049,1103,1109,1181,1301,1367,1373,1499,1511,1637, %U A107009 1721,1901,1907,2003,2099,2237,2267,2333,2381,2423,2447,2531,2663 %N A107009 Primes of the form 5x^2+xy+5y^2, with x and y nonnegative. %C A107009 Discriminant=-99. %H A107009 Vincenzo Librandi and Ray Chandler, <a href="/A107009/b107009.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A107009 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 A107009 QuadPrimes2[5, 1, 5, 10000] (* see A106856 *) %K A107009 nonn,easy %O A107009 1,1 %A A107009 _T. D. Noe_, May 09 2005