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 A107203 #18 Feb 10 2017 14:45:53 %S A107203 19,241,331,499,571,601,691,739,769,1009,1129,1249,1291,1531,1579, %T A107203 1699,2011,2089,2131,2161,2521,2689,2731,2851,2971,3001,3049,3259, %U A107203 3331,3499,3691,3739,3889,4051,4129,4219,4339,4441,4561,4729,4801 %N A107203 Primes of the form 9x^2 + 10y^2. %C A107203 Discriminant = -360. See A107132 for more information. %H A107203 Vincenzo Librandi and Ray Chandler, <a href="/A107203/b107203.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A107203 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 A107203 QuadPrimes2[9, 0, 10, 10000] (* see A106856 *) %o A107203 (PARI) list(lim)=my(v=List(),w,t); for(x=1, sqrtint(lim\9), w=9*x^2; for(y=1, sqrtint((lim-w)\10), if(isprime(t=w+10*y^2), listput(v,t)))); Set(v) \\ _Charles R Greathouse IV_, Feb 10 2017 %K A107203 nonn,easy %O A107203 1,1 %A A107203 _T. D. Noe_, May 13 2005