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Search: id:A138604
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| A138604 |
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Short legs of more than two primitive Pythagorean triangles. |
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+0
1
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| 60, 84, 105, 120, 132, 140, 156, 165, 168, 180, 195, 204, 204, 220, 228, 228, 231, 240, 252, 255, 260, 264, 273, 276, 276, 280, 280, 285, 300, 300, 308, 312, 315, 315
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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60, 91,109; 60,221,229; 60, 899, 901;
84,187,205; 84, 437, 445; 84,1763,1765;
105,208,233; 105, 608, 617; 105,5512,5513;
120,209,241; 120, 391, 409; 120,3599,3601;
132,475,493; 132,1085,1093; 132,4355,4357;
140,171,221; 140,1221,1229; 140,4899,4901;
156,667,685; 156,1517,1525; 156,6083,6085;
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MATHEMATICA
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aa=aaa=1; s=""; For[a=1, a<=10^2, For[b=a+1, ((b+1)^2-b^2)<=a^2, c=(a^2+b^2)^0.5; If[c==Round[c]&&GCD[a, b]==1, If[a==aaa, s=s<>ToString[a]<>", "]; aaa=aa; aa=a; ]; b++ ]; a++ ]; s
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CROSSREFS
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Sequence in context: A085987 A086974 A099831 this_sequence A086975 A073461 A100659
Adjacent sequences: A138601 A138602 A138603 this_sequence A138605 A138606 A138607
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), May 13 2008
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EXTENSIONS
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More terms Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 24 2009
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