id:A073052 - OEIS Search Results

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Decimal expansion of Cos(Pi/7).

+0
2

9, 0, 0, 9, 6, 8, 8, 6, 7, 9, 0, 2, 4, 1, 9, 1, 2, 6, 2, 3, 6, 1, 0, 2, 3, 1, 9, 5, 0, 7, 4, 4, 5, 0, 5, 1, 1, 6, 5, 9, 1, 9, 1, 6, 2, 1, 3, 1, 8, 5, 7, 1, 5, 0, 0, 5, 3, 5, 6, 2, 4, 2, 3, 1, 9, 9, 4, 3, 2, 4, 2, 0, 4, 2, 7, 9, 3, 9, 9, 6, 5, 5, 0, 1, 3, 6, 1, 4, 5, 4, 7, 1, 8, 5, 1, 2, 4, 1, 5, 3, 1, 8, 3, 1, 0 (list; cons; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Cos(Pi/7) = 0.90096886790241912623610231950744505116139...`
	LINKS	`MathPages, Radical Expression For cos(2pi/7)`
	FORMULA	`Equals 2F1(5/7,2/7;1/2;3/4) / 2 . [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 27 2008]`
	MATHEMATICA	`RealDigits[ Cos[Pi/7], 10, 105] [[1]]`
	CROSSREFS	`Sequence in context: A019940 A132267 A021115 this_sequence A005083 A050453 A013529` `Adjacent sequences: A073049 A073050 A073051 this_sequence A073053 A073054 A073055`
	KEYWORD	`cons,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 15 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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