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A011002
Decimal expansion of 4th root of 3.
15
1, 3, 1, 6, 0, 7, 4, 0, 1, 2, 9, 5, 2, 4, 9, 2, 4, 6, 0, 8, 1, 9, 2, 1, 8, 9, 0, 1, 7, 9, 6, 9, 9, 9, 0, 5, 5, 1, 6, 0, 0, 6, 8, 5, 9, 0, 2, 0, 5, 8, 2, 2, 1, 7, 6, 7, 3, 1, 9, 2, 2, 6, 5, 8, 5, 9, 5, 8, 6, 6, 7, 9, 5, 1, 9, 7, 3, 0, 2, 1, 3, 3, 0, 5, 0, 7, 4, 3, 1, 5, 0, 2, 4, 6, 6, 0, 1, 9, 3
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
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
Cf. A179615, continued fraction.
Sequence in context: A210621 A226771 A096614 * A298241 A113817 A197151
KEYWORD
nonn,cons
STATUS
approved