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 A033245 #23 Jul 08 2025 19:48:05
%S A033245 71,79,151,191,239,281,359,401,431,449,569,599,631,641,751,809,911,
%T A033245 919,991,1009,1031,1129,1201,1289,1409,1439,1471,1481,1759,1801,1831,
%U A033245 1871,1999,2039,2081,2111,2129
%N A033245 Primes of form x^2+70*y^2.
%D A033245 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989.
%H A033245 Vincenzo Librandi and Ray Chandler, <a href="/A033245/b033245.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]
%H A033245 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 A033245 The primes are congruent to {1, 9, 39, 71, 79, 81, 121, 151, 169, 191, 239, 249} (mod 280). - _T. D. Noe_, Apr 29 2008
%t A033245 QuadPrimes2[1, 0, 70, 10000] (* see A106856 *)
%Y A033245 Cf. A139643.
%K A033245 nonn,easy
%O A033245 1,1
%A A033245 _N. J. A. Sloane_