Are all analytic continuations consistent with $1+2+3+\dots=-\frac{1}{12}$?
138569
Is the “sum of all natural numbers” unique?
154185
Evaluate $\iiint_{[0,1]^3}\frac{dx\,dy\,dz}{(1+x^2+y^2+z^2)^2}$
5868
Find the real number $x$ represented by continued fraction $[12;2,2,12,2,2,12,2,2,12\dots]$
133589
Could we show $1-(x-\frac{x^3}{3!}+\frac{x^5}{5!}-\dots)^2=(1-\frac{x^2}{2!}+\frac{x^4}{4!}- \dots)^2$ if we didn't know about Taylor Expansion?
30480
Continued product in $\sin$ series
141357
Is $1+2+3+4+\cdots=-\frac{1}{12}$ the unique ''value'' of this series?
10357
Do harmonic numbers have a “closed-form” expression?
4340
Why does $1+2+3+\cdots = -\frac{1}{12}$?
22524
Proving that $\frac{\pi^{3}}{32}=1-\sum_{k=1}^{\infty}\frac{2k(2k+1)\zeta(2k+2)}{4^{2k+2}}$
154065
$\int_{\frac{1}{3}\pi}^{\frac{2}{3}\pi} {\sin(x)\;dx}$ using Riemann sums?
11935
Is $\mathbb{Z} \left[ \frac{1+i \sqrt{7}}{2} \right]$ euclidean?
26541
Is $\sum_{n=1}^{\infty}{\frac{\sin(nx)}n}$ continuous?
140458
Infinite summation involving exponents
81596
Series expansion at $x=0$ of $\frac{3x}{1+x^2 + x^4}$
24068
Plus-minus sign in the continued fraction
30724
Summation splitting: $\sum_{n=1}^{\infty} \frac{n}{3\cdot 5\cdot 7 \dots (2n+1)}$
49936
Various evaluations of the series $\sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)^3}$