A new Apéry-like series for ζ(11) derived via central difference operators

$$\begin{aligned}\zeta(11) = &\ \frac{45}{2} \sum_{n=1}^{\infty} \frac{(-1)^{n-1}}{n^{11} \binom{2n}{n}}- \frac{2079}{16} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n}{n^{10} \binom{2n}{n}} \\&+ \frac{4455}{64} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(2)}}{n^9 \binom{2n}{n}}- \frac{1485}{128} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(3)}}{n^8 \binom{2n}{n}} \\&+ \frac{99}{256} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(4)}}{n^7 \binom{2n}{n}}\end{aligned}$$where $H_n^{(m)} = \sum_{k=1}^{n} k^{-m}$ are the generalized harmonic numbers.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-05-01
DOI
https://doi.org/10.5281/zenodo.20005219
Primary Topic
Advanced Mathematical Identities
Type
article
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article

A new Apéry-like series for ζ(11) derived via central difference operators

Mohammad Hammad
Zenodo (CERN European Organization for Nuclear Research)
Advanced Mathematical Identities
article

A new Apéry-like series for ζ(11) derived via central difference operators

Mohammad Hammad
article en

Abstract

$$\begin{aligned}\zeta(11) = &\ \frac{45}{2} \sum_{n=1}^{\infty} \frac{(-1)^{n-1}}{n^{11} \binom{2n}{n}}- \frac{2079}{16} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n}{n^{10} \binom{2n}{n}} \\&+ \frac{4455}{64} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(2)}}{n^9 \binom{2n}{n}}- \frac{1485}{128} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(3)}}{n^8 \binom{2n}{n}} \\&+ \frac{99}{256} \sum_{n=1}^{\infty} \frac{(-1)^{n-1} H_n^{(4)}}{n^7 \binom{2n}{n}}\end{aligned}$$where $H_n^{(m)} = \sum_{k=1}^{n} k^{-m}$ are the generalized harmonic numbers.

Zenodo (CERN European Organization for Nuclear Research)
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Advanced Mathematical Identities
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A new Apéry-like series for ζ(11) derived via central difference operators — Mohammad Hammad · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS