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A019872 Decimal expansion of sine of 63 degrees. 4
8, 9, 1, 0, 0, 6, 5, 2, 4, 1, 8, 8, 3, 6, 7, 8, 6, 2, 3, 5, 9, 7, 0, 9, 5, 7, 1, 4, 1, 3, 6, 2, 6, 3, 1, 2, 7, 7, 0, 5, 1, 8, 5, 1, 9, 0, 3, 6, 0, 8, 8, 7, 4, 5, 4, 0, 5, 5, 2, 2, 2, 8, 4, 5, 2, 2, 4, 9, 2, 2, 7, 4, 1, 7, 6, 1, 3, 5, 2, 2, 4, 3, 7, 7, 9, 3, 8, 5, 8, 2, 7, 3, 4, 8, 6, 1, 4, 7, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

An algebraic number of degree 8 and denominator 2. - Charles R Greathouse IV, Nov 06 2017

LINKS

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Wikipedia, Exact trigonometric constants

FORMULA

Equals A019851 * A019878 + A019830 * A019857 = A010527 * A019896 + A019812 * (1/2). - R. J. Mathar, Jan 27 2021

MATHEMATICA

RealDigits[Sin[63 Degree], 10, 120][[1]] (* Harvey P. Dale, Oct 31 2018 *)

PROG

(PARI) sin(31/60*Pi) \\ Charles R Greathouse IV, Nov 06 2017

CROSSREFS

Sequence in context: A133747 A222458 A351222 * A011421 A269947 A178839

Adjacent sequences: A019869 A019870 A019871 * A019873 A019874 A019875

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified November 30 19:14 EST 2022. Contains 358453 sequences. (Running on oeis4.)