OFFSET
1,1
EXAMPLE
2.09660384204420529670870342459669934740592303182578...
MATHEMATICA
s = Sum[(3^k + 1)/(6^k + 1), {k, 0, 1000}];
d = N[s, 100]
First[RealDigits[d]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Jul 01 2024
STATUS
approved