

A102520


Decimal expansion of 1(9*sqrt(3))/(8*Pi).


8



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

0,1


COMMENTS

This is the probability that a Gaussian triangle in 5 dimensions is obtuse.
Also, the probability that the distance between 2 randomly selected points within a 4dimensional ball will be smaller than its radius.  Amiram Eldar, Apr 14 2022


LINKS

G. C. Greubel, Table of n, a(n) for n = 0..5000
Steven R. Finch, Random Triangles, January 21, 2010. [Cached copy, with permission of the author]
Eric Weisstein's World of Mathematics, Ball Line Picking.
Eric Weisstein's World of Mathematics, Gaussian Triangle Picking.
Index entries for transcendental numbers


MATHEMATICA

RealDigits[1  (9*Sqrt[3])/(8*Pi), 10, 50][[1]] (* G. C. Greubel, Jun 02 2017 *)


PROG

(PARI) 1  (9*sqrt(3))/(8*Pi) \\ G. C. Greubel, Jun 01 2017


CROSSREFS

Cf. A102519.
Sequence in context: A011271 A005534 A113014 * A275667 A122490 A347926
Adjacent sequences: A102517 A102518 A102519 * A102521 A102522 A102523


KEYWORD

cons,nonn


AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Jan 13 2005


STATUS

approved



