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 A033236 #27 Jul 08 2025 19:47:02
%S A033236 61,73,157,229,277,313,349,397,457,541,577,613,709,733,757,769,853,
%T A033236 937,997,1033,1069,1201,1213,1297,1429,1453,1489,1597,1621,1657,1669,
%U A033236 1753,1873,1993,2053,2113,2137
%N A033236 Primes of form x^2+57*y^2.
%D A033236 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989.
%H A033236 Vincenzo Librandi and Ray Chandler, <a href="/A033236/b033236.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]
%H A033236 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)
%F A033236 Primes congruent to {1, 25, 49, 61, 73, 85, 121, 157, 169} (mod 228). - _T. D. Noe_, Apr 29 2008
%t A033236 QuadPrimes2[1, 0, 57, 10000] (* see A106856 *)
%t A033236 With[{nn=50},Take[Union[Select[#[[1]]+57#[[2]]&/@(Tuples[Range[nn],2]^2), PrimeQ]],nn]] (* _Harvey P. Dale_, Jun 17 2014 *)
%Y A033236 Cf. A139643.
%K A033236 nonn,easy
%O A033236 1,1
%A A033236 _N. J. A. Sloane_