OFFSET
0,3
EXAMPLE
0.11248476074367570863455686829448049346...
MATHEMATICA
(See A191329.)
PROG
(PARI) sum(k=1, 2, (1/3.)^(1.<<(2^(2^k-1))+1)) \\ Charles R Greathouse IV, Jun 30 2011
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, May 31 2011
STATUS
approved