OFFSET
1,1
COMMENTS
Coordinates are independent normally distributed random variables with mean 0 and variance 1.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
Steven R. Finch, Random Triangles, Jan 21 2010. [Cached copy, with permission of the author]
FORMULA
Equals Sum_{k>=0} k!/(k+3/2)!. - Amiram Eldar, Jun 19 2023
EXAMPLE
2.25675833419102514779231780624309034337620251731...
MATHEMATICA
RealDigits[4/Sqrt[Pi], 10, 103] // First
PROG
(PARI) 4/sqrt(Pi) \\ G. C. Greubel, Jan 09 2017
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Oct 31 2014
STATUS
approved