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A020884
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Ordered short legs of primitive Pythagorean triangles.
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29
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3, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 19, 20, 20, 21, 23, 24, 25, 27, 28, 28, 29, 31, 32, 33, 33, 35, 36, 36, 37, 39, 39, 40, 41, 43, 44, 44, 45, 47, 48, 48, 49, 51, 51, 52, 52, 53, 55, 56, 57, 57, 59, 60, 60, 60, 61, 63, 64, 65, 65, 67, 68, 68, 69, 69, 71, 72, 73, 75, 75, 76, 76, 77
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Consider primitive Pythagorean triangles (A^2 + B^2 = C^2, (A, B) = 1, A <= B); sequence gives values of A, sorted.
Union of A081874 and A081925. - Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 28 2006
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LINKS
| Ron Knott, Pythagorean Triples and Online Calculators
P. Alfeld, Pythagorean Triples
N. Exner, Generating Pythagorean Triples(Applet)
W. A. Kehowski, Pythagorean Triples
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MATHEMATICA
| lst={}; amx=99; Do[For[b=a+1, b<(a^2/2), c=(a^2+b^2)^(1/2); If[c==IntegerPart[c]&&GCD[a, b, c]==1, AppendTo[lst, a]]; b=b+2], {a, 3, amx}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 07 2008]
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CROSSREFS
| Cf. A009004, A020882-A020886. Different from A024352.
Sequence in context: A025050 A196115 A025051 * A183855 A024352 A134407
Adjacent sequences: A020881 A020882 A020883 * A020885 A020886 A020887
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KEYWORD
| nonn,easy,nice
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
| Extended and corrected by David W. Wilson (davidwwilson(AT)comcast.net)
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