%I #4 Jun 19 2014 15:31:08
%S 137,193,401,617,641,953,1009,1129,1289,1297,1801,1913,2129,2137,2377,
%T 2473,2657,2713,2801,3049,3257,3313,3329,3593,3889,4001,4057,4153,
%U 4201,4337,4649,4657,4729,4817,4937,4993,5009,5153,5209,5441,5657,5849,5881
%N Primes of the form x^2 + 30x*y + y^2 for x and y nonnegative.
%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)
%t a = {}; w = 30; k = 1; Do[Do[If[PrimeQ[n^2 + w*n*m + k*m^2], AppendTo[a, n^2 + w*n*m + k*m^2]], {n, m, 400}], {m, 1, 400}]; Union[a] (*Artur Jasinski*)
%Y Cf. A139489, A007645, A068228, A007519, A033212, A033212, A107152, A107008, A033215, A107145, A139490, A139491.
%K nonn
%O 1,1
%A _Artur Jasinski_, Apr 24 2008
|