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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
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.
Named after the Indian-American astrophysicist Subrahmanyan Chandrasekhar (1910-1995). - Amiram Eldar, Jun 27 2021
LINKS
S. Chandrasekhar, Stochastic problems in physics and astronomy, Reviews of modern physics, Vol. 15, No. 1 (1943), pp. 1-89.
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: A306982 A278928 A273826 * A232609 A225666 A365078
KEYWORD
nonn,cons
AUTHOR
Stanislav Sykora, Jun 03 2012
STATUS
approved