A070205 - OEIS

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A070205

Number of acute integer triangles with perimeter n having integral inradius.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,84`
	COMMENTS	`a(n) = A070201(n) - A024155(n) - A070206(n).`
	LINKS	`Eric Weisstein's World of Mathematics, Incircle.` `Eric Weisstein's World of Mathematics, Acute Triangle.` `R. Zumkeller, Integer-sided triangles`
	CROSSREFS	`Cf. A070140, A070093.` `Sequence in context: A083935 A053201 A028605 * A138363 A080225 A122841` `Adjacent sequences: A070202 A070203 A070204 * A070206 A070207 A070208`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 05 2002`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.