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 A033227 #30 Jul 08 2025 19:45:58 %S A033227 43,103,139,157,181,277,367,439,523,547,607,673,751,823,991,997,1039, %T A033227 1063,1117,1153,1171,1231,1249,1381,1429,1453,1459,1483,1693,1759, %U A033227 1933,1951,1993,1999,2011,2029,2131 %N A033227 Primes of form x^2+39*y^2. %C A033227 Also primes of the form x^2-xy+10y^2 with x and y nonnegative. - _T. D. Noe_, May 07 2005 %D A033227 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989. %H A033227 Vincenzo Librandi and Ray Chandler, <a href="/A033227/b033227.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A033227 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 A033227 QuadPrimes2[1, 0, 39, 10000] (* see A106856 *) %Y A033227 Primes in A243194. %K A033227 nonn,easy %O A033227 1,1 %A A033227 _N. J. A. Sloane_