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A195868 Positive integers a for which there is a primitive 1-Pythagorean triple (a,b,c) satisfying a<=b.

%I A195868 #10 Mar 30 2012 18:57:48
%S A195868 3,5,7,7,9,11,11,13,13,15,16,17,17,19,19,21,23,23,24,25,25,27,29,29,
%T A195868 31,31,32,32,33,35,37,40,40,40,41,43,47,48,49,53,55,55,56
%N A195868 Positive integers a for which there is a primitive 1-Pythagorean triple (a,b,c) satisfying a<=b.
%C A195868 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
%e A195868 Primitive 1-Pythagorean triples
%e A195868 (c^2=a^2+b^2+k*a*b, where k=1):
%e A195868 3,5,7
%e A195868 5,16,19
%e A195868 7,8,13
%e A195868 7,33,37
%e A195868 9,56,61
%e A195868 11,24,31
%e A195868 11,85,91
%e A195868 13,35,43
%e A195868 13,120,127
%t A195868 (See A195770.)
%Y A195868 Cf. A195770, A195778.
%K A195868 nonn
%O A195868 1,1
%A A195868 _Clark Kimberling_, Sep 25 2011