A341901 - OEIS

A341901

Decimal expansion of 1/zeta(9).

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

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OFFSET

0,1

COMMENTS

1/zeta(9) is the probability that 9 randomly selected numbers will be coprime.

LINKS

Karl-Heinz Hofmann, Table of n, a(n) for n = 0..10000

Wikipedia, Riemann zeta function.

FORMULA

Equals 1/A013667.

From Amiram Eldar, Jun 01 2023: (Start)

Equals Sum_{k>=1} mu(k)/k^9, where mu is the Möbius function (A008683).