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 A106966 #17 Aug 05 2014 14:16:29 %S A106966 3,7,11,37,59,61,113,151,197,313,317,353,419,463,499,563,593,733,757, %T A106966 859,881,907,929,941,977,997,1021,1033,1109,1123,1223,1237,1249,1283, %U A106966 1451,1481,1543,1559,1613,1741,1759,1811,1867,1877,1889,1901,1907 %N A106966 Primes of the form 3x^2+xy+7y^2, with x and y nonnegative. %C A106966 Discriminant=-83. %H A106966 Vincenzo Librandi and Ray Chandler, <a href="/A106966/b106966.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106966 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 A106966 QuadPrimes2[3, 1, 7, 10000] (* see A106856 *) %K A106966 nonn,easy %O A106966 1,1 %A A106966 _T. D. Noe_, May 09 2005