A019848 Decimal expansion of sine of 39 degrees.

6, 2, 9, 3, 2, 0, 3, 9, 1, 0, 4, 9, 8, 3, 7, 4, 5, 2, 7, 0, 5, 9, 0, 2, 4, 5, 8, 2, 7, 9, 9, 7, 0, 4, 2, 6, 5, 6, 6, 8, 6, 2, 4, 1, 2, 1, 2, 9, 8, 6, 6, 6, 3, 9, 4, 6, 0, 3, 2, 8, 0, 2, 5, 7, 8, 0, 7, 5, 3, 0, 0, 9, 9, 8, 7, 2, 1, 3, 6, 3, 6, 7, 2, 4, 6, 4, 6, 9, 4, 6, 6, 0, 6, 8, 9, 9, 9, 8, 9

Offset

0,1

Comments

This sequence is also decimal expansion of cosine of 51 degrees. - Mohammad K. Azarian, Jun 29 2013

An algebraic number of degree 16 and denominator 2. - Charles R Greathouse IV, Nov 05 2017

Links

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

Wikipedia, Trigonometric constants expressed in real radicals

Index entries for algebraic numbers, degree 16

Formula

Equals A019835*A019886 + A019822*A019873 = A019845*A019896 + A019812*A019863. - R. J. Mathar, Jan 27 2021

Mathematica

RealDigits[Sin[39 Degree], 10, 120][[1]] (* Harvey P. Dale, Oct 02 2015 *)

Prog

(PARI) sin(13/60*Pi) \\ Charles R Greathouse IV, Nov 05 2017

Crossrefs

Cf. A019812, A019822, A019835, A019845, A019886, A019873, A019896, A019863.

Sequence in context: A201324 A107826 A078756 * A246967 A351215 A215261

Adjacent sequences: A019845 A019846 A019847 * A019849 A019850 A019851

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved