OFFSET
1,2
COMMENTS
Also 8th root of 9. - Alonso del Arte, Dec 06 2011
The 4th root r(4) of the expected value E(x^4) for a normal distribution with zero mean and standard deviation 1. See A289090 for more details. - Stanislav Sykora, Jul 26 2017
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..5000
FORMULA
Equals exp(arctanh(1/2)/2). - Amiram Eldar, Jul 10 2023
EXAMPLE
1.3160740129524924608192189...
MATHEMATICA
RealDigits[3^(1/4), 10, 100][[1]]
PROG
(PARI) sqrtn(3, 4) \\ Charles R Greathouse IV, Apr 14 2014
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
STATUS
approved