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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A016578 Decimal expansion of log(3/2). 7
4, 0, 5, 4, 6, 5, 1, 0, 8, 1, 0, 8, 1, 6, 4, 3, 8, 1, 9, 7, 8, 0, 1, 3, 1, 1, 5, 4, 6, 4, 3, 4, 9, 1, 3, 6, 5, 7, 1, 9, 9, 0, 4, 2, 3, 4, 6, 2, 4, 9, 4, 1, 9, 7, 6, 1, 4, 0, 1, 4, 3, 2, 4, 1, 4, 4, 1, 0, 0, 6, 7, 1, 2, 4, 8, 9, 1, 4, 2, 5, 1, 2, 6, 7, 7, 5, 2, 4, 2, 7, 8, 1, 7, 3, 1, 3, 4, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

Jolley, Summation of Series, Dover (1961), eq (102) page 20.

LINKS

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

Index entries for transcendental numbers

FORMULA

Sum {k>=1} 1/(k*3^k). - Robert G. Wilson v, Aug 08 2011

1/2 - 1/(2*2^2) + 1/(3*2^3) - 1/(4*2^4) + ... [Jolley].

Equals A002391-A002162. - Michel Marcus, Sep 17 2016

EXAMPLE

0.405465108108164381978013115464349136571990423462494197614013...

MATHEMATICA

RealDigits[Log[3/2], 10, 111][[1]] (* Robert G. Wilson v, Aug 08 2011 *)

PROG

(PARI) default(realprecision, 20080); x=10*log(3/2); for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b016578.txt", n, " ", d)); \\ Harry J. Smith, May 17 2009

CROSSREFS

Cf. A016529, A002391, A002162.

Sequence in context: A197251 A049247 A175621 * A268631 A308108 A320374

Adjacent sequences:  A016575 A016576 A016577 * A016579 A016580 A016581

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 August 21 22:32 EDT 2019. Contains 326169 sequences. (Running on oeis4.)