OFFSET
1,2
COMMENTS
Also seventh root of 64. - Alonso del Arte, Feb 07 2015
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 8.7 Hermite's Constants, p. 507.
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
Steven R. Finch, Errata and Addenda to Mathematical Constants, arXiv:2001.00578 [math.HO], 2020, p. 62.
FORMULA
Equals Product_{k>=0} (1 + (-1)^k/(7*k + 1)). - Amiram Eldar, Jul 29 2020
EXAMPLE
1.81144732852781334318834574643020637540089176251587471...
MATHEMATICA
RealDigits[2^(6/7), 10, 103] // First
PROG
(PARI) sqrtn(64, 7) \\ Michel Marcus, Feb 08 2015
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Sep 02 2014
STATUS
approved