Search: id:A139984
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%I A139984
%S A139984 3,283,307,523,643,787,1123,1483,1627,1867,1987,2203,2467,2707,2803,
%T A139984 3163,3307,3547,3643,4003,4483,4507,4723,4987,5227,5323,5347,5563,5683,
%U A139984 5827,6067,6163,6907,7027,7243,7507,7867,8707,8923,9043,9187
%N A139984 Primes of the form 3x^2+280y^2.
%C A139984 Discriminant=-3360. See A139827 for more information.
%F A139984 Except for 3, the primes are congruent to {187, 283, 307, 523, 643, 787} 
               (mod 840).
%t A139984 QuadPrimes[3, 0, 280, 10000] (* see A106856 *)
%Y A139984 Sequence in context: A096126 A057599 A054583 this_sequence A057631 A058455 
               A116532
%Y A139984 Adjacent sequences: A139981 A139982 A139983 this_sequence A139985 A139986 
               A139987
%K A139984 nonn,easy
%O A139984 1,1
%A A139984 T. D. Noe (noe(AT)sspectra.com), May 02 2008

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