OFFSET
2,1
COMMENTS
Surface area of the 5-dimensional unit sphere.
LINKS
G. C. Greubel, Table of n, a(n) for n = 2..5000
Eric Weisstein, Hypersphere, Wolfram Mathworld.
Wikipedia, Hypersphere
EXAMPLE
Equals 26.318945069571622983558642666336...
MATHEMATICA
RealDigits[8*Pi^2/3, 10, 50][[1]] (* G. C. Greubel, Sep 11 2017 *)
PROG
(PARI) 8*Pi^2/3 \\ G. C. Greubel, Sep 11 2017
CROSSREFS
KEYWORD
cons,nonn
AUTHOR
R. J. Mathar, Aug 10 2009
EXTENSIONS
A-number in formula corrected by R. J. Mathar, Aug 12 2010
STATUS
approved