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A196269 Positive integers a for which there is a primitive (-1/4)-Pythagorean triple (a,b,c) satisfying a<=b.

%I A196269 #8 Mar 30 2012 18:57:49
%S A196269 1,4,6,9,10,10,11,12,13,14,15,17,19,20,20,22,23,23,25,26,28,28,29,31,
%T A196269 31,32,32,32,32,33,34,35,36,37,38,38,39,41,44,44,47,50,52,52,53,54,55,
%U A196269 55,57,58,60,61,64,64,64,65,65,65,68,71,76,76,79,82
%N A196269 Positive integers a for which there is a primitive (-1/4)-Pythagorean triple (a,b,c) satisfying a<=b.
%C A196269 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
%e A196269 Primitive (-1/4)-Pythagorean tripleas a,b,c;
%e A196269 c^2=a^2+b^2+k*a*b, where k=-1/4:
%e A196269 1,4,4
%e A196269 4,5,6
%e A196269 6,10,11
%e A196269 9,320,319
%e A196269 10,22,23
%e A196269 10,198,197
%e A196269 11,160,159
%e A196269 12,132,142
%e A196269 13,32,33
%e A196269 14,130,129
%t A196269 (See A196266.)
%Y A196269 Cf. A195770, A196270, A196271, A196268.
%K A196269 nonn
%O A196269 1,2
%A A196269 _Clark Kimberling_, Sep 30 2011