A195782 Decimal expansion of arccot(8).

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

Offset

0,2

Links

Table of n, a(n) for n=0..99.

Formula

Equals Integral_{x = 0..inf} exp(-8*x)*sin(x)/x dx. - Peter Bala, Nov 05 2019

Equals arctan(1/8) = arcsin(1/sqrt(65)) = arccos(8/sqrt(65)). - Amiram Eldar, May 24 2021

Example

arccot(8)=0.124354994546761435031354849163871025573170...

Mathematica

(See A195781.)
RealDigits[ArcCot[8], 10, 120][[1]] (* Harvey P. Dale, Nov 09 2014 *)

Crossrefs

Cf. A195781.

Sequence in context: A352196 A060762 A328793 * A053049 A306762 A124938

Adjacent sequences: A195779 A195780 A195781 * A195783 A195784 A195785

Keyword

nonn,cons

Author

Clark Kimberling, Sep 24 2011

Status

approved