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 A106938 #20 Aug 05 2014 14:16:29 %S A106938 2,13,89,101,137,229,257,373,389,421,433,457,557,577,701,757,761,769, %T A106938 773,953,1021,1033,1069,1109,1181,1249,1277,1301,1373,1429,1481,1549, %U A106938 1613,1657,1789,1801,1889,1913,1973,1993,1997,2333,2389,2393,2549 %N A106938 Primes of the form 2x^2-2xy+9y^2, with x and y nonnegative. %C A106938 Discriminant=-68. %H A106938 Vincenzo Librandi and Ray Chandler, <a href="/A106938/b106938.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106938 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 A106938 QuadPrimes2[2, -2, 9, 10000] (* see A106856 *) %K A106938 nonn,easy %O A106938 1,1 %A A106938 _T. D. Noe_, May 09 2005