OFFSET
1,4
COMMENTS
1.008 664 915 88(49) u according to CODATA 2014. a(10) is 5 or 6. - Ivan Panchenko, Jan 27 2015 [Updated by Andrey Zabolotskiy, Jun 22 2017]
REFERENCES
J. Borwein and P. Borwein, A Dictionary of Real Numbers, Wadsworth, Pacific Grove, Calif., 1990, p. v.
H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, NY, 2nd ed., 1987.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
CROSSREFS
KEYWORD
cons,nonn
AUTHOR
EXTENSIONS
a(9) updated by Ivan Panchenko, Jan 27 2015
STATUS
approved