cp's OEIS Frontend

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.

A033222 Primes of form x^2+33*y^2.

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%I A033222 #26 Jul 08 2025 19:45:23
%S A033222 37,97,157,181,229,313,397,421,433,577,661,709,757,829,1021,1093,1153,
%T A033222 1213,1237,1321,1453,1489,1549,1609,1621,1741,1753,1873,2017,2029,
%U A033222 2113,2137,2161,2269,2281,2293
%N A033222 Primes of form x^2+33*y^2.
%D A033222 David A. Cox, "Primes of the Form x^2 + n y^2", Wiley, 1989.
%H A033222 Vincenzo Librandi and Ray Chandler, <a href="/A033222/b033222.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]
%H A033222 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 A033222 The primes are congruent to {1, 25, 37, 49, 97} (mod 132). - _T. D. Noe_, Apr 29 2008
%t A033222 QuadPrimes2[1, 0, 33, 10000] (* see A106856 *)
%o A033222 (Magma) [ p: p in PrimesUpTo(3000) | p mod 132 in {1, 25, 37, 49, 97} ]; // _Vincenzo Librandi_, Jul 20 2012
%Y A033222 Cf. A139643.
%K A033222 nonn,easy
%O A033222 1,1
%A A033222 _N. J. A. Sloane_