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A196186 Positive integers a for which there is a primitive 9-Pythagorean triple (a,b,c) satisfying a<=b. 6

%I

%S 1,3,3,3,3,5,5,5,7,8,8,8,9,9,11,13,13,15,15,15,15,15,16,16,16,17,17,

%T 19,19,21,21,23,23,24,24,24,24,25,27,29,31,32,32,33,35,37,39,39,39,39,

%U 40,40,40,41,43,45,45,45,47,48,48,51,51,51,53,55,56

%N Positive integers a for which there is a primitive 9-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 9-Pythagorean triples a,b,c;

%e c^2=a^2+b^2+9*a*b:

%e 1,15,19

%e 3,5,13

%e 3,8,17

%e 3,13,23

%e 3,160,173

%e 5,24,41

%e 5,48,67

%e 5,459,481

%e 7,57,83

%e 8,15,37

%t (See A196183.)

%Y Cf. A195770, A196183, A196187, A196188.

%K nonn

%O 1,2

%A _Clark Kimberling_, Sep 29 2011

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Last modified October 17 17:21 EDT 2021. Contains 348065 sequences. (Running on oeis4.)