id:A110547 - OEIS Search Results

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Number of sides of regular polygons whose interior angles (in degrees) are not integers.

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1

7, 11, 13, 14, 16, 17, 19, 21, 22, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Numbers not divisors of 360.`
	FORMULA	`a(n)=[(n-2)*180)]/n`
	EXAMPLE	`a(3)=13 because the third polygone whose interior angle in degrees is not an integer is the 13-gone.`
	CROSSREFS	`Cf. A069976, A100659, A018412.` `Sequence in context: A084451 A091901 A072823 this_sequence A051660 A028784 A119393` `Adjacent sequences: A110544 A110545 A110546 this_sequence A110548 A110549 A110550`
	KEYWORD	`easy,nonn`
	AUTHOR	`Alexandre Wajnberg (alexandre.wajnberg(AT)skynet.be), Sep 11 2005`

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

AT&T Labs Research