A195705 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A195705

Decimal expansion of arctan(sqrt(3/8)).

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

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..5000

FORMULA

Equals arcsin(sqrt(3/11)) = arccos(2*sqrt(2/11)). - Amiram Eldar, Jul 09 2023

EXAMPLE

arctan(sqrt(3/8)) = 0.549467244757...

MATHEMATICA

r = Sqrt[3/8];

N[ArcSin[r], 100]