A019847 Decimal expansion of sine of 38 degrees.

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

Offset

0,1

Comments

This sequence is also decimal expansion of cosine of 52 degrees. - Mohammad K. Azarian, Jun 29 2013

An algebraic number of degree 12 and denominator 2. - Charles R Greathouse IV, Nov 05 2017

Links

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

Index entries for algebraic numbers, degree 12

Formula

Equals 2*A019828*A019880. - R. J. Mathar, Jan 17 2021

Example

0.6156614...

Mathematica

RealDigits[Sin[38 Degree], 10, 120][[1]] (* Harvey P. Dale, Dec 06 2020 *)

Prog

(PARI) sin(19/90*Pi) \\ Charles R Greathouse IV, Nov 05 2017

Crossrefs

Sequence in context: A370424 A325313 A365165 * A021946 A257704 A248411

Adjacent sequences: A019844 A019845 A019846 * A019848 A019849 A019850

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved