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 A106900 #17 Aug 05 2014 14:16:29 %S A106900 83,191,197,269,439,487,523,619,823,907,947,977,1193,1277,1319,1447, %T A106900 1481,1499,1579,1709,1741,1811,1861,1867,2053,2213,2221,2273,2351, %U A106900 2447,2539,2777,2789,2879,2917,2939,2963,3061,3089,3203,3373,3449 %N A106900 Primes of the form x^2+xy+12y^2, with x and y nonnegative. %C A106900 Discriminant=-47. %H A106900 Vincenzo Librandi and Ray Chandler, <a href="/A106900/b106900.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A106900 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 A106900 QuadPrimes2[1, 1, 12, 10000] (* see A106856 *) %K A106900 nonn,easy %O A106900 1,1 %A A106900 _T. D. Noe_, May 09 2005