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A139934 Primes of the form 15x^2+22y^2. 2

%I

%S 37,103,157,223,367,397,463,487,727,757,823,1087,1093,1213,1237,1303,

%T 1423,1453,1543,1567,1783,2143,2293,2557,2677,2797,2887,3037,3463,

%U 3613,3727,3733,3853,3877,3943,4093,4327,4357,4423,4447,4783,4933

%N Primes of the form 15x^2+22y^2.

%C Discriminant=-1320. See A139827 for more information.

%H Vincenzo Librandi and Ray Chandler, <a href="/A139934/b139934.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]

%H 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 The primes are congruent to {37, 103, 133, 157, 223, 247, 367, 397, 463, 487, 493, 727, 757, 823, 973, 1087, 1093, 1213, 1237, 1303} (mod 1320).

%t QuadPrimes2[15, 0, 22, 10000] (* see A106856 *)

%o (MAGMA) [ p: p in PrimesUpTo(6000) | p mod 1320 in [37, 103, 133, 157, 223, 247, 367, 397, 463, 487, 493, 727, 757, 823, 973, 1087, 1093, 1213, 1237, 1303]]; // _Vincenzo Librandi_, Aug 02 2012

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 02 2008

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Last modified August 8 11:12 EDT 2020. Contains 336293 sequences. (Running on oeis4.)