id:A137915 - OEIS Search Results

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Decimal expansion of 180*arccos(1/3)/Pi.

+0
2

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

	OFFSET	`2,1`
	COMMENT	`Dihedral angle in degrees of regular tetrahedron.`
	LINKS	`Jackson, Frank and Weisstein, Eric W., Tetrahedron` `Weisstein, Eric W., Dihedral Angle`
	FORMULA	`180A137914/Pi = 180arccos(1/3)/Pi.`
	EXAMPLE	`70.52877936550930863075400066003756403699315689909205171182889364396025356...`
	PROGRAM	`(PARI) 180*acos(1/3)/Pi`
	CROSSREFS	`Cf. A137914 (same in radians).` `Sequence in context: A033150 A064648 A116198 this_sequence A130203 A011479 A153871` `Adjacent sequences: A137912 A137913 A137914 this_sequence A137916 A137917 A137918`
	KEYWORD	`cons,nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), Feb 22 2008`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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