OFFSET
0,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..2500
EXAMPLE
0.36697273...
MATHEMATICA
RealDigits[9*N[ (1/3) Sum[1/(10^k - 1), {k, 1, Infinity}], 120]] [[1]]
PROG
(PARI) 3*suminf(k=1, 1/(10^k-1)) \\ Michel Marcus, Oct 30 2016
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Eric Desbiaux, Mar 03 2008
STATUS
approved