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A161823

Among any n lines on the plane, there exists a pair at an angle not more than a(n) degrees.

90, 60, 45, 36, 30, 26, 23, 20, 18, 17, 15, 14, 13, 12, 12, 11, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`2,1`
	LINKS	`Table of n, a(n) for n=2..97.`
	FORMULA	`a(n) = ceiling(180/n) for n > 1.`
	CROSSREFS	`Sequence in context: A332427 A033410 A008901 * A270173 A003899 A271233` `Adjacent sequences: A161820 A161821 A161822 * A161824 A161825 A161826`
	KEYWORD	`nonn`
	AUTHOR	`Srikanth K S, Jun 20 2009`
	STATUS	`approved`

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Last modified September 12 15:15 EDT 2024. Contains 375853 sequences. (Running on oeis4.)