A238271 - OEIS

A238271

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

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, 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, 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

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

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

LINKS

Table of n, a(n) for n=0..104.

EXAMPLE

=0.1819953867026338878278001003005655732263449801353830617592494771...

MATHEMATICA

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

CROSSREFS