A161017 - OEIS

A161017

Decimal expansion of tan(1/8).

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

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

OFFSET

0,2

COMMENTS

By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019

LINKS

Harry J. Smith, Table of n, a(n) for n = 0..20000

Index entries for transcendental numbers.

EXAMPLE

0.125655136575130967792678218629774000758665763892225542668866613927255...

MATHEMATICA

RealDigits[Tan[1/8], 10, 120][[1]] (* Amiram Eldar, Jun 27 2023 *)

PROG

(PARI) default(realprecision, 20080); x=10*tan(1/8); for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b161017.txt", n, " ", d));

CROSSREFS

Cf. A019431 (continued fraction).

Sequence in context: A016636 A103989 A239049 * A198231 A272207 A372322

Adjacent sequences: A161014 A161015 A161016 * A161018 A161019 A161020

KEYWORD

cons,nonn

AUTHOR

Harry J. Smith, Jun 14 2009

STATUS

approved

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