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A195726 Decimal expansion of arccos(-sqrt(5/6)). 2
2, 7, 2, 1, 0, 5, 8, 3, 1, 8, 3, 0, 5, 8, 2, 8, 1, 1, 0, 5, 7, 4, 3, 8, 0, 8, 6, 7, 3, 6, 6, 2, 8, 7, 5, 1, 0, 8, 4, 6, 1, 3, 0, 0, 0, 6, 5, 5, 5, 1, 8, 6, 2, 1, 1, 0, 8, 5, 6, 8, 3, 1, 8, 9, 9, 6, 1, 7, 7, 1, 7, 5, 4, 5, 4, 8, 0, 4, 0, 3, 1, 8, 3, 6, 8, 7, 6, 7, 8, 2, 2, 9, 1, 6, 3, 2, 4, 5, 5, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

EXAMPLE

arccos(-sqrt(5/6)) = 2.72105831830582...

MATHEMATICA

r = Sqrt[5/6];

N[ArcCos[-r], 100]

RealDigits[%]

PROG

(PARI) acos(-sqrt(5/6)) \\ G. C. Greubel, Aug 20 2018

(MAGMA) SetDefaultRealField(RealField(100)); Arccos(-Sqrt(5/6)); // G. C. Greubel, Aug 20 2018

CROSSREFS

Cf. A195725.

Sequence in context: A139339 A090986 A245221 * A095194 A254251 A095711

Adjacent sequences:  A195723 A195724 A195725 * A195727 A195728 A195729

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Sep 23 2011

STATUS

approved

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Last modified November 30 13:47 EST 2021. Contains 349420 sequences. (Running on oeis4.)