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A195868 Positive integers a for which there is a primitive 1-Pythagorean triple (a,b,c) satisfying a<=b. 3

%I

%S 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 31,31,32,32,33,35,37,40,40,40,41,43,47,48,49,53,55,55,56

%N Positive integers a for which there is a primitive 1-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 1-Pythagorean triples

%e (c^2=a^2+b^2+k*a*b, where k=1):

%e 3,5,7

%e 5,16,19

%e 7,8,13

%e 7,33,37

%e 9,56,61

%e 11,24,31

%e 11,85,91

%e 13,35,43

%e 13,120,127

%t (See A195770.)

%Y Cf. A195770, A195778.

%K nonn

%O 1,1

%A _Clark Kimberling_, Sep 25 2011

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Last modified August 15 15:50 EDT 2020. Contains 336504 sequences. (Running on oeis4.)