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A238271 Decimal expansion of sum(n>=1, mu(n)/3^n ). 5

%I

%S 1,8,1,9,9,5,3,8,6,7,0,2,6,3,3,8,8,7,8,2,7,8,0,0,1,0,0,3,0,0,5,6,5,5,

%T 7,3,2,2,6,3,4,4,9,8,0,1,3,5,3,8,3,0,6,1,7,5,9,2,4,9,4,7,7,1,6,3,2,4,

%U 2,0,4,8,3,6,8,5,0,5,4,1,6,4,2,2,8,9,8,3,9,5,7,7,6,4,9,2,3,9,9,0,2,6,9,9,4

%N Decimal expansion of sum(n>=1, mu(n)/3^n ).

%C Suggested by a posting to SeqFan list by Alonso Del Arte at 15:35 on Aug 09 2012.

%e =0.1819953867026338878278001003005655732263449801353830617592494771...

%t RealDigits[ Sum[ N[ MoebiusMu[n] 3^-n, 128], {n, 300}], 10, 111][[1]]

%Y Cf. A008683, A238270, A238272 & A238273.

%K nonn,cons,easy

%O 0,2

%A _Robert G. Wilson v_, Feb 21 2014

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Last modified June 22 07:09 EDT 2021. Contains 345374 sequences. (Running on oeis4.)