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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A068433 Expansion of log(3) in base 2. 1
1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

EXAMPLE

The decimal expansion is log(3) = 1.098612288668109...

MATHEMATICA

RealDigits[Log[3], 2, 108][[1]] (* Alonso del Arte, Feb 17 2013 *)

PROG

(JavaScript)

function binaryExp(n) {

x = new Array();

for (i = 0; i < 50; i++) if (n - Math.pow(2, 1 - i) >= 0) {n -= Math.pow(2, 1 - i); x[i] = 1; } else x[i] = 0;

return x;

}

document.write(Math.log(3) + "<br>");

document.write(binaryExp(Math.log(3))); // Jon Perry, Nov 18 2012

(PARI) concat(binary(log(3))) \\ Michel Marcus, Dec 14 2017

CROSSREFS

Cf. A002391.

Sequence in context: A287663 A195376 A164950 * A266895 A088592 A188189

Adjacent sequences:  A068430 A068431 A068432 * A068434 A068435 A068436

KEYWORD

base,cons,easy,nonn

AUTHOR

Benoit Cloitre, Mar 09 2002

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 August 23 14:06 EDT 2019. Contains 326231 sequences. (Running on oeis4.)