

A213054


Decimal expansion of first Chandrasekhar's nearest neighbor constant.


1



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

0,1


COMMENTS

When n pointlike particles are distributed uniformly randomly in a unit volume, the mean distance between any of them and its nearest neighbor is c/n^(1/3).
For the most probable distance, see A213055.


REFERENCES

S. Chandrasekhar, Stochastic Problems in Physics and Astronomy, Reviews of Modern Physics, 15 (1943), 189.


LINKS

Table of n, a(n) for n=0..104.


FORMULA

c = Gamma(4/3)/(4*Pi/3)^(1/3).


EXAMPLE

0.5539602783650902047011211914997...


MATHEMATICA

RealDigits[Gamma[4/3]/Surd[4 Pi/3, 3], 10, 120][[1]] (* Harvey P. Dale, Apr 16 2015 *)


CROSSREFS

Cf. A213055.
Sequence in context: A267033 A278928 A273826 * A232609 A225666 A175505
Adjacent sequences: A213051 A213052 A213053 * A213055 A213056 A213057


KEYWORD

nonn,cons


AUTHOR

Stanislav Sykora, Jun 03 2012


STATUS

approved



