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 A106918 #17 Aug 05 2014 14:16:29 %S A106918 3,5,19,53,167,181,193,257,263,271,281,293,307,331,359,379,449,487, %T A106918 523,557,607,617,619,761,829,883,911,947,997,1031,1049,1187,1231,1303, %U A106918 1433,1487,1523,1549,1553,1667,1669,1759,1811,1889,1933,1973,1993 %N A106918 Primes of the form 3x^2+xy+5y^2, with x and y nonnegative. %C A106918 Discriminant=-59. %H A106918 Vincenzo Librandi and Ray Chandler, <a href="/A106918/b106918.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106918 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 A106918 QuadPrimes2[3, 1, 5, 10000] (* see A106856 *) %K A106918 nonn,easy %O A106918 1,1 %A A106918 _T. D. Noe_, May 09 2005