id:A070124 - OEIS Search Results

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Numbers n such that [A070080(n), A070081(n), A070082(n)] is an acute isosceles integer triangle.

+0
4

1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 15, 16, 18, 19, 22, 23, 24, 27, 28, 31, 34, 35, 38, 39, 40, 43, 46, 47, 48, 51, 54, 55, 58, 63, 64, 65, 68, 71, 72, 73, 76, 81, 84, 85, 88, 93, 94, 95, 98, 103, 107, 108, 109, 112, 117, 120, 121, 124, 129 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`R. Zumkeller, Integer-sided triangles`
	EXAMPLE	`a(13)=18: [A070080(18), A070081(18), A070082(18)]=[4=4=4], A070085(18)=4^2+4^2-4^2=16>0.`
	CROSSREFS	`Cf. A070098, A070126, A070125, A070115, A070118.` `Sequence in context: A039054 A047519 A070118 this_sequence A059097 A047301 A001953` `Adjacent sequences: A070121 A070122 A070123 this_sequence A070125 A070126 A070127`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), May 05 2002`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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