A019842 Decimal expansion of sine of 33 degrees.

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

Offset

0,1

Comments

This sequence is also decimal expansion of cosine of 57 degrees. - Mohammad K. Azarian, Jun 29 2013

An algebraic number of degree 16 and denominator 2. - Charles R Greathouse IV, Aug 27 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 A019831 * A019888 + A019820 * A019877 = (1/2) * A019896 + A019812 * A010527. - R. J. Mathar, Jan 27 2021

Mathematica

RealDigits[Sin[33 Degree], 10, 120][[1]] (* Harvey P. Dale, Jul 26 2023 *)

Prog

(PARI) sin(11*Pi/60) \\ Charles R Greathouse IV, Aug 27 2017

Crossrefs

Sequence in context: A134206 A134209 A232007 * A357418 A303270 A340918

Adjacent sequences: A019839 A019840 A019841 * A019843 A019844 A019845

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved