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18h
answered The sum of all numbers between 1 and 1000 (inclusive) that are divisible by 3 or 5, but not both
22h
answered Simplifying a Taylor polynomial that involves Stirling numbers of the second kind
Aug
31
answered Solve $x^{x^x}=-1$
Aug
29
answered What is the sum of this series? $\sum_{n=1}^\infty\frac{\zeta(1-n)(-1)^{n+1}}{2^{n-1}}$
Aug
21
answered How to solve special type of Diophantine equation
Jul
23
asked Does the Borel-transform of the Lerch-Transcendent have a name/simple expression?
Jul
23
answered Summing Lerch Transcendents
Jul
15
answered Looking for a verification or refutation my attempted proof of why the Collatz conjecture is probably false.
Jul
4
answered Algorithm for tetration to work with floating point numbers
Jun
5
answered Proof of $\sum_{x = 1}^\infty \frac{1}{x}$'s divergence by absurdity?
Jun
4
answered Explicit function for Bernoulli numbers
Jun
1
answered Solutions of the equation $X^n-1\equiv 0$ (mod $m$)?
May
24
asked How to make 4 (parametrized) points (in the complex plane) concentric?
May
10
answered The Physical Meaning of Tetration with fractional power tower
May
8
answered Continuum between addition, multiplication and exponentiation?
May
8
asked Is the sum of the reciprocals of the squarefree numbers divergent or convergent?
Apr
27
answered What causes long sequences of consecutive 'collatz' paths to share the same length?
Apr
25
answered Longest known sequence of identical consecutive Collatz sequence lengths?
Apr
1
answered to the equation
Mar
27
answered Cesàro means of divergent series