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A097263
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Primitive Pythagorean Quadruples a^2+b^2+c^2=d^2, 0<a<=b<=c<=d, gcd(a,b,c,d)=1, sorted by d, then c, then b; sequence gives odd leg values.
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4
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1, 3, 7, 1, 7, 9, 3, 11, 5, 9, 1, 15, 17, 1, 11, 13, 19, 5, 13, 3, 3, 15, 9, 7, 23, 23, 25, 7, 21, 11, 3, 21, 21, 27, 5, 17, 25, 7, 17, 31, 7, 1, 15, 17, 1, 33, 27, 21, 3, 3, 19, 29, 29, 13, 19, 35, 23, 31, 9, 33, 39, 25, 7, 9, 39, 7, 9, 29, 35, 37, 13, 19, 5, 27, 21, 27, 11, 21, 43, 23
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OFFSET
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1,2
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COMMENTS
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One of a,b,c is odd, other two are even for primitive Pythagorean quadruples.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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