A019895 Decimal expansion of sine of 86 degrees.

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

Offset

0,1

Links

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

Formula

Equals cos(Pi/45) = 2F1(8/15,7/15;1/2;3/4) / 2 . [R. J. Mathar, Oct 27 2008]

Equals 2*A019852*A019856. - R. J. Mathar, Jan 17 2021

Example

0.99756405025982424761316268064425502636937766038422...

Maple

Digits:=100: evalf(cos(Pi/45)); # Wesley Ivan Hurt, Aug 31 2014

Mathematica

RealDigits[Cos[Pi/45], 10, 100, -1][[1]] (* Wesley Ivan Hurt, Aug 31 2014 *)

Crossrefs

Sequence in context: A277587 A372828 A201570 * A196399 A239528 A244347

Adjacent sequences: A019892 A019893 A019894 * A019896 A019897 A019898

Keyword

nonn,cons

Author

N. J. A. Sloane.

Status

approved