Top Network Posts
- 38Are there infinitely many $x$ for which $\pi(x) \mid x$?
- 17Does listing the prime factors always stop?
- 15Is Lebesgue's "universal covering" problem still open?
- 15How do we know that Fermat wrote his famous note in 1637?
- 13Does there exist a pure recurrence formula with polynomial coefficients for Fibonacci(2^n)?
- 13Definition of a strange attractor.
- 10Summing $1/n^2$ over subsets of $N$.
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