login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A161015 Decimal expansion of tan(1/6). 2
1, 6, 8, 2, 2, 7, 2, 1, 8, 3, 0, 2, 2, 4, 2, 4, 6, 1, 2, 5, 7, 2, 1, 6, 0, 8, 0, 5, 6, 9, 9, 1, 6, 1, 0, 0, 9, 6, 9, 3, 9, 3, 6, 5, 1, 6, 8, 5, 0, 5, 6, 6, 8, 5, 7, 2, 4, 0, 3, 2, 7, 3, 9, 2, 4, 8, 2, 4, 7, 4, 3, 8, 7, 0, 8, 5, 3, 1, 6, 1, 6, 3, 2, 7, 9, 4, 4, 9, 8, 1, 3, 5, 1, 8, 3, 5, 7, 3, 0, 3, 9, 2, 8, 1, 5 (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

0.168227218302242461257216080569916100969393651685056685724032739248247...

MATHEMATICA

RealDigits[Tan[1/6], 10, 120][[1]] (* Harvey P. Dale, Aug 26 2014 *)

PROG

(PARI) default(realprecision, 20080); x=10*tan(1/6); for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b161015.txt", n, " ", d));

CROSSREFS

Cf. A019429 Continued fraction.

Sequence in context: A075549 A196617 A021860 * A263719 A154564 A152914

Adjacent sequences:  A161012 A161013 A161014 * A161016 A161017 A161018

KEYWORD

cons,nonn

AUTHOR

Harry J. Smith, Jun 13 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 26 00:10 EDT 2019. Contains 324367 sequences. (Running on oeis4.)