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#20 by Ray Chandler at Tue Jan 21 13:20:20 EST 2020
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#19 by Ray Chandler at Tue Jan 21 13:20:14 EST 2020
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Ray Chandler, <a href="/A112680/b112680.txt">Table of n, a(n) for n = 1..10000</a>
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approved
editing
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#18 by N. J. A. Sloane at Thu Jul 07 23:45:04 EDT 2016
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R. Ron Knott, <a href="http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Pythag/pythag.html#moregen">Generator of all Pythagorean triples that include a given number</a>
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Discussion
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| Thu Jul 07
| 23:45
| OEIS Server: https://oeis.org/edit/global/2530
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#17 by R. J. Mathar at Fri Dec 13 04:23:29 EST 2013
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#16 by R. J. Mathar at Fri Dec 13 04:23:17 EST 2013
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AnonymousR. Knott, <a href="http://www.weaver1maths.btinternetsurrey.coac.uk/hosted-sites/theimmortalwombatR.Knott/junkPythag/pythag.html#moregen">Generator of all Pythagorean triples that include a given number</a> [Broken link]>
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approved
editing
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#15 by Bruno Berselli at Mon Nov 25 03:40:43 EST 2013
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#14 by Clark Kimberling at Sat Nov 23 13:57:59 EST 2013
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#13 by Clark Kimberling at Sat Nov 23 13:57:43 EST 2013
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| COMMENTS
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Let S consist of integers x such that x is a term of a primitive Pythagorean triple (ppt). Consider the equivalencesequivalence classes induced on S by this relation: x and y are equivalent if some ppt includes both x and y. For each class E, let x(E) be the least number in E. Then (a(n)) is the result of arranging the numbers x(E) in increasing order. The terms of S can be represented as nodes of a disconnected graph whose components match the classes C. For example, the component represented by a(1) = 3 starts with
. . . . . . . . . . . . . . . . . . 3
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proposed
editing
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#12 by Jon E. Schoenfield at Sat Nov 23 13:27:53 EST 2013
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#11 by Jon E. Schoenfield at Sat Nov 23 13:27:43 EST 2013
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