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A196386 Positive integers a for which there is a primitive (-5)-Pythagorean triple (a,b,c) satisfying a<=b.

%I A196386 #5 Mar 30 2012 18:57:50
%S A196386 1,1,3,3,5,5,5,5,7,7,8,8,8,8,9,9,11,11,11,11,13,13,13,15,15,15,16,16,
%T A196386 16,16,17,17,17,19,19,19,21,23,23,24,24,24,24,25,25,27,29,29,31,31,32,
%U A196386 32,32,33,33,35,35,37,39,39,40,40,40,40,40,40,40,41
%N A196386 Positive integers a for which there is a primitive (-5)-Pythagorean triple (a,b,c) satisfying a<=b.
%C A196386 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
%e A196386 Primitive (-5)-Pythagorean triples a,b,c;
%e A196386 c^2=a^2+b^2-5*a*b:
%e A196386 1,5,1
%e A196386 1,8,5
%e A196386 3,16,5
%e A196386 3,55,47
%e A196386 5,24,1
%e A196386 5,33,17
%e A196386 5,57,43
%e A196386 5,144,131
%e A196386 7,104,85
%e A196386 7,275,257
%t A196386 (See A196383.)
%Y A196386 Cf. A195770, A196383, A196387, A196388.
%K A196386 nonn
%O A196386 1,3
%A A196386 _Clark Kimberling_, Oct 01 2011