Top network posts

• 181 Are $14$ and $21$ the only "interesting" numbers?
• 63 Closed form solution for $\sum_{n=1}^\infty\frac{1}{1+\frac{n^2}{1+\frac{1}{\stackrel{\ddots}{1+\frac{1}{1+n^2}}}}}$.
• 44 If $f(x)=x^2-x-1$ and $f^n(x)=f(f(\cdots f(x)\cdots))$, find all $x$ for which $f^{3n}(x)$ converges.
• 23 Primes $p_i$ such that $\sin(\frac{\pi}{n})\sin(\frac{p_1\pi}{n})\cdots\sin(\frac{p_k\pi}{n})$ is rational
• 18 Find all $A\subseteq\mathbb{N}$ such that $A=\{|a-b|:a,b\in A\}$.
• 10 Kähler metrics on the coadjoint orbits of a compact Lie group
• 10 Is there a Kähler manifold with no anti-holomophic involution?
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