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 A106872 #20 Aug 05 2014 14:16:29 %S A106872 2,5,7,19,41,59,71,97,101,103,107,109,113,157,163,191,193,211,233,257, %T A106872 281,307,311,317,359,373,397,419,421,439,443,467,479,503,541,547,563, %U A106872 593,599,659,661,683,691,701,727,733,751,769,877,887,907,977,997,1033 %N A106872 Primes of the form 2x^2+xy+4y^2. %C A106872 Discriminant=-31. %C A106872 Primes p such that the polynomial x^3-x^2-1 is irreducible over Zp. The polynomial discriminant is also -31. - _T. D. Noe_, May 13 2005 %H A106872 Vincenzo Librandi and Ray Chandler, <a href="/A106872/b106872.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106872 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 A106872 Union[QuadPrimes2[2, 1, 4, 10000], QuadPrimes2[2, -1, 4, 10000]] (* see A106856 *) %Y A106872 Primes in A123064. %K A106872 nonn,easy %O A106872 1,1 %A A106872 _T. D. Noe_, May 09 2005