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A372910
Decimal expansion of Sum_{k>=0} (3^k + 1)/(6^k + 1).
3
2, 0, 9, 6, 6, 0, 3, 8, 4, 2, 0, 4, 4, 2, 0, 5, 2, 9, 6, 7, 0, 8, 7, 0, 3, 4, 2, 4, 5, 9, 6, 6, 9, 9, 3, 4, 7, 4, 0, 5, 9, 2, 3, 0, 3, 1, 8, 2, 5, 7, 8, 4, 3, 7, 1, 4, 8, 8, 5, 8, 8, 9, 8, 0, 4, 4, 9, 8, 9, 4, 5, 7, 6, 9, 6, 7, 6, 9, 8, 1, 8, 6, 7, 8, 2, 7
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