login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A016704 Decimal expansion of log(81). 2
4, 3, 9, 4, 4, 4, 9, 1, 5, 4, 6, 7, 2, 4, 3, 8, 7, 6, 5, 5, 8, 0, 9, 8, 0, 9, 4, 7, 6, 9, 0, 1, 0, 2, 8, 1, 8, 5, 8, 9, 9, 6, 2, 2, 3, 1, 2, 9, 0, 9, 9, 7, 8, 0, 6, 9, 3, 8, 7, 7, 7, 3, 3, 4, 5, 4, 9, 9, 7, 7, 1, 7, 2, 8, 7, 4, 4, 3, 5, 8, 6, 7, 4, 9, 4, 4, 6, 3, 0, 1, 9, 2, 5, 4, 9, 2, 8, 3, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..20000

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

Index entries for transcendental numbers

FORMULA

2 times A016632.

EXAMPLE

4.394449154672438765580980947690102818589962231290997806938777334549977....

MATHEMATICA

RealDigits[Log[81], 10, 120][[1]] (* Harvey P. Dale, Feb 20 2012 *)

PROG

(PARI) default(realprecision, 20080); x=log(81); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016704.txt", n, " ", d)); \\ Harry J. Smith, May 24 2009

(MAGMA) SetDefaultRealField(RealField(100)); Log(81); // G. C. Greubel, Sep 17 2018

CROSSREFS

Cf. A016509 (continued fraction).

Sequence in context: A155536 A232814 A074123 * A131896 A114380 A293130

Adjacent sequences:  A016701 A016702 A016703 * A016705 A016706 A016707

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

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 February 26 11:49 EST 2020. Contains 332279 sequences. (Running on oeis4.)