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 A107209 #18 Feb 10 2017 15:52:14 %S A107209 101,173,317,449,593,809,821,829,853,877,997,1097,1117,1181,1453,1481, %T A107209 1553,1613,1669,1697,1789,1889,1913,2053,2309,2381,2393,2677,2693, %U A107209 2741,2969,3037,3229,3313,3361,3389,3433,3617,3637,3673,3821,3853 %N A107209 Primes of the form x^2 + 92y^2. %C A107209 Discriminant = -368. See A107132 for more information. %H A107209 Vincenzo Librandi and Ray Chandler, <a href="/A107209/b107209.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A107209 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 A107209 QuadPrimes2[1, 0, 92, 10000] (* see A106856 *) %o A107209 (PARI) list(lim)=my(v=List(),w,t); for(x=1, sqrtint(lim\1), w=x^2; for(y=1, sqrtint((lim-w)\92), if(isprime(t=w+92*y^2), listput(v,t)))); Set(v) \\ _Charles R Greathouse IV_, Feb 10 2017 %K A107209 nonn,easy %O A107209 1,1 %A A107209 _T. D. Noe_, May 13 2005