%I A079887
%S A079887 1,1,3,3,5,1,5,1,5,3,5,9,7,1,7,3,5,11,1,5,13,13,5,11,15,3,5,11,15,1,3,
               7,
%T A079887 13,9,11,7,13,19,17,1,5,13,17,9,17,9,11,5,7,23,15,19,1,3,21,9,19,11,25,
%U A079887 21,7,25,17,1,13,5,15,23,11,17,5,25,23,9,3,5,19,15,27,25,13,1,19,29,27
%N A079887 Values of y-x where p runs through the primes of form 4k+1 and p=x^2+y^2, 
               x<=y.
%Y A079887 Cf. A002330, A002331, A002313, A002144, A079886.
%Y A079887 Sequence in context: A091931 A109824 A011399 this_sequence A131843 A105104 
               A142961
%Y A079887 Adjacent sequences: A079884 A079885 A079886 this_sequence A079888 A079889 
               A079890
%K A079887 nonn
%O A079887 1,3
%A A079887 Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 13 2003