A102447 Decimal expansion of log_3(20).

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

Offset

1,1

Comments

Hausdorff dimension of Menger sponge.

References

Manfred Schroeder, Fractals, Chaos, Power Laws, Freeman,1991, p. 179.

Ian Stewart, Does God Play Dice?, The New Mathematics of Chaos, 2nd Ed., Blackwell Pub'l., Malden MA, 2002, p. 207.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

C. C. Bergemann, PlanetMath.org, Menger sponge

O. Knill, Menger Sponge

School of Mathematics and Statistics, University of St Andrews, Scotland, Abram Samoilovitch Besicovitch.

Turnbull WWW Server, Felix Hausdorff.

Eric Weisstein's World of Mathematics, Menger Sponge

Wikipedia, Hausdorff dimension.

Index entries for transcendental numbers

Example

2.72683302786084204139609463636416210490710364692981054479420028247...

Mathematica

RealDigits[ Log[3, 20], 10, 111][[1]]

Prog

(PARI) log(20)/log(3) \\ Michel Marcus, Jul 19 2020

Crossrefs

Cf. A100831, A102525, A113210, A152564.

Sequence in context: A365524 A157513 A087706 * A151869 A262083 A181284

Adjacent sequences: A102444 A102445 A102446 * A102448 A102449 A102450

Keyword

cons,nonn

Author

Robert G. Wilson v, Feb 23 2005

Status

approved