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A019813 Decimal expansion of sine of 4 degrees. 1
0, 6, 9, 7, 5, 6, 4, 7, 3, 7, 4, 4, 1, 2, 5, 3, 0, 0, 7, 7, 5, 9, 5, 8, 8, 3, 5, 1, 9, 4, 1, 4, 3, 3, 2, 8, 6, 0, 0, 9, 0, 3, 2, 0, 1, 6, 5, 2, 7, 9, 6, 5, 2, 5, 0, 4, 3, 6, 1, 7, 2, 9, 6, 1, 3, 7, 0, 7, 1, 1, 2, 7, 0, 6, 6, 7, 8, 9, 1, 2, 2, 9, 1, 2, 5, 3, 7, 8, 5, 6, 8, 2, 8, 0, 7, 4, 2, 9, 2, 3 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

An algebraic number of degree 24 and denominator 2. - Charles R Greathouse IV, Aug 27 2017

LINKS

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

EXAMPLE

0.06975...

MATHEMATICA

Join[{0}, RealDigits[Sin[4 Degree], 10, 120][[1]]] (* Harvey P. Dale, Oct 07 2019 *)

PROG

(PARI) sin(Pi/45) \\ Charles R Greathouse IV, Aug 27 2017

CROSSREFS

Sequence in context: A273082 A065414 A198135 * A096767 A247844 A052119

Adjacent sequences:  A019810 A019811 A019812 * A019814 A019815 A019816

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Zero added in front - R. J. Mathar, Feb 05 2009

STATUS

approved

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Last modified February 17 21:35 EST 2020. Contains 332006 sequences. (Running on oeis4.)