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 A106892 #17 Aug 05 2014 14:16:29 %S A106892 3,23,37,89,113,157,179,191,317,331,379,389,433,487,509,577,643,709, %T A106892 751,823,859,881,971,983,1153,1171,1193,1259,1277,1279,1301,1373,1423, %U A106892 1489,1607,1637,1709,1741,1747,1879,2027,2029,2143,2179,2203,2269 %N A106892 Primes of the form 3x^2+2xy+4y^2, with x and y nonnegative. %C A106892 Discriminant=-44. %H A106892 Vincenzo Librandi and Ray Chandler, <a href="/A106892/b106892.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106892 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 A106892 QuadPrimes2[3, 2, 4, 10000] (* see A106856 *) %K A106892 nonn,easy %O A106892 1,1 %A A106892 _T. D. Noe_, May 09 2005