id:A070099 - OEIS Search Results

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Number of integer triangles with perimeter n and relatively prime side lengths which are acute and isosceles.

+0
5

0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 2, 1, 3, 1, 1, 2, 4, 1, 4, 2, 2, 2, 5, 1, 4, 2, 4, 3, 6, 2, 6, 3, 4, 3, 5, 3, 8, 3, 4, 3, 8, 3, 9, 5, 5, 4, 10, 3, 9, 4, 6, 5, 11, 4, 8, 5, 7, 6, 12, 3, 13, 6, 8, 7, 9, 4, 14, 7, 8, 5, 15, 5, 15, 7, 9, 8, 13, 6, 16, 6, 11, 8, 17, 5, 13 (list; graph; listen)

	OFFSET	`1,11`
	LINKS	`R. Zumkeller, Integer-sided triangles`
	CROSSREFS	`Cf. A070080, A070081, A070082, A070093, A059169, A051493, A070091, A070094, A070098, A070084, A070125.` `Sequence in context: A123507 A122580 A107041 this_sequence A126760 A007740 A117811` `Adjacent sequences: A070096 A070097 A070098 this_sequence A070100 A070101 A070102`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 05 2002`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

AT&T Labs Research