A019813 Decimal expansion of sine of 4 degrees.

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

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

Index entries for algebraic numbers, degree 24

Formula

Equals 2*A019811*A019897. - R. J. Mathar, Jan 17 2021

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 by R. J. Mathar, Feb 05 2009

Status

approved