A347059 - OEIS

A347059

Decimal expansion of the Dirichlet eta function at 9.

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

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OFFSET

0,1

REFERENCES

L. B. W. Jolley, Summation of Series, Dover, 1961, Eq. (306).

LINKS

Table of n, a(n) for n=0..86.

Michael I. Shamos, Shamos's catalog of the real numbers (2011).

FORMULA

Equals (255/256) * zeta(9).

Equals Sum_{k>=1} (-1)^(k+1) / k^9.

Equals eta(9).