OFFSET
1,1
LINKS
Dominik Beck, Mean distance in polyhedra, arXiv:2309.13177 [math.PR], 22 Sep 2023.
Eric Weisstein's World of Mathematics, Tetrahedron Line Picking
EXAMPLE
0.729462424484318...
MATHEMATICA
RealDigits[3^(1/3) (Sqrt[2]/7 - 37 Pi/315 + 4/15 ArcTan[Sqrt[2]] + 113 Log[3]/(210 Sqrt[2])), 10, 85][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Sep 26 2023
STATUS
approved