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15
Math.TechQA.Club
2026-03-23 08:53:16
2.4k
Views
A Gift Problem for the Year 2018
Published on
23 Mar 2026 - 8:53
#combinatorics
#group-theory
#summation
#finite-groups
#harmonic-numbers
171
Views
Hypergeometric series with harmonic factor
Published on
20 Mar 2026 - 3:28
#calculus
#summation
#hypergeometric-function
#harmonic-numbers
504
Views
Infinite series with harmonic numbers related to elliptic integrals
Published on
20 Mar 2026 - 14:24
#sequences-and-series
#special-functions
#generating-functions
#harmonic-numbers
#elliptic-integrals
52
Views
A non obvious example of a sequence $a(k)\cdot H_{b(k)}$ whose general term is integer many times, where $H_n$ denotes the $n$th harmonic number
Published on
23 Mar 2026 - 3:12
#real-analysis
#elementary-number-theory
#prime-numbers
#harmonic-numbers
59
Views
On integer sequences of the form $\sum_{n=1}^N (a(n))^2H_n^2,$ where $H_n$ is the $n$th harmonic number: refute my conjecture and add yourself example
Published on
22 Mar 2026 - 19:50
#sequences-and-series
#number-theory
#elementary-number-theory
#conjectures
#harmonic-numbers
136
Views
Simple formula for $H_n = m + \alpha $?
Published on
22 Mar 2026 - 15:54
#closed-form
#ceiling-and-floor-functions
#harmonic-numbers
#digamma-function
282
Views
Limit of the difference between two harmonic numbers
Published on
22 Mar 2026 - 15:36
#sequences-and-series
#limits
#harmonic-numbers
88
Views
Justify an approximation of $-\sum_{n=2}^\infty H_n\left(\frac{1}{\zeta(n)}-1\right)$, where $H_n$ denotes the $n$th harmonic number
Published on
24 Mar 2026 - 17:10
#asymptotics
#analytic-number-theory
#harmonic-numbers
#mobius-function
56
Views
Show that for $n\gt 2$, $\frac{\sigma_1(n)}{n}\lt H_n$
Published on
22 Mar 2026 - 6:06
#harmonic-numbers
#divisor-sum
101
Views
first derivative of exponential generating function of harmonic numbers
Published on
23 Mar 2026 - 1:52
#generating-functions
#harmonic-numbers
618
Views
Calculating the summation $\sum_{n=1}^{\infty}\frac{H_{n+1}}{n(n+1)}$
Published on
23 Mar 2026 - 3:46
#sequences-and-series
#harmonic-numbers
273
Views
Binomial Harmonic Numbers
Published on
24 Mar 2026 - 23:41
#binomial-coefficients
#harmonic-numbers
5.9k
Views
Derivative of binomial coefficients
Published on
24 Mar 2026 - 23:42
#reference-request
#binomial-coefficients
#harmonic-numbers
144
Views
Series involving product of Harmonic Numbers
Published on
24 Mar 2026 - 23:46
#summation
#closed-form
#products
#harmonic-numbers
212
Views
Asymptotics of product of harmonic numbers
Published on
24 Mar 2026 - 23:46
#asymptotics
#products
#harmonic-numbers
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