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%I #5 Mar 30 2012 18:57:50
%S 1,2,3,3,4,5,5,6,6,7,7,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,15,
%T 15,16,17,17,18,18,19,19,20,20,21,21,21,22,23,24,25,26,27,28,30,30,30,
%U 33,33,34,35,35,36,38,39,39,40,42,42,42,44,45,45
%N Positive integers a for which there is a primitive (-6)-Pythagorean triple (a,b,c) satisfying a<=b.
%C See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
%e Primitive (-6)-Pythagorean triples a,b,c;
%e c^2=a^2+b^2-6*a*b:
%e 1,6,1
%e 2,15,7
%e 3,20,7
%e 3,28,17
%e 4,45,31
%e 5,42,23
%e 5,66,49
%e 6,35,1
%e 6,91,71
%e 7,72,47
%t (See A196390.)
%Y Cf. A195770, A196390, A196394, A196395.
%K nonn
%O 1,2
%A _Clark Kimberling_, Oct 01 2011
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