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 A106939 #17 Aug 05 2014 14:16:29 %S A106939 5,79,167,359,373,577,617,877,881,947,1213,1223,1231,1567,1741,1861, %T A106939 1889,2179,2347,2381,2521,2539,2633,2789,2843,3203,3433,3659,3701, %U A106939 3719,3823,4049,4051,4127,4297,4549,4871,4973,4999,5297,5477,5507 %N A106939 Primes of the form 4x^2+3xy+5y^2, with x and y nonnegative. %C A106939 Discriminant=-71. %H A106939 Vincenzo Librandi and Ray Chandler, <a href="/A106939/b106939.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106939 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 A106939 QuadPrimes2[4, 3, 5, 10000] (* see A106856 *) %K A106939 nonn,easy %O A106939 1,1 %A A106939 _T. D. Noe_, May 09 2005