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New posts in recreational-mathematics
The final number after $999$ operations.
elementary-number-theory
recreational-mathematics
How many ways are there to pile $n$ "$1\times 2$ rectangles" under some conditions?
sequences-and-series
combinatorics
recreational-mathematics
Approximation of $e$ using $\pi$ and $\phi$?
elementary-number-theory
exponential-function
recreational-mathematics
approximation
pi
A gambler with the devil's luck?
probability
combinatorics
recreational-mathematics
How to create mazes on the hyperbolic plane?
graph-theory
recreational-mathematics
hyperbolic-geometry
percolation
Suggestions for mathematical solitaire against boredom
soft-question
recreational-mathematics
Strange acknowledgment in Serge Lang's Linear Algebra
reference-request
recreational-mathematics
mathematicians
How to colour the US map with Yellow, Green, Red and Blue to minimize the number of states with the color of Green
graph-theory
recreational-mathematics
coloring
Reverse engineering a math magic trick involving matrices.
recreational-mathematics
magic-square
limit $\underbrace{\lim_{n\to\infty}\frac1n+\lim_{n\to\infty}\frac1n+\cdots+\lim_{n\to\infty}\frac1n}_{n\text{ times}}$
calculus
limits
recreational-mathematics
paradoxes
Interesting Math for 3-graders
recreational-mathematics
BIG LIST: Statements that look obviously false but cannot be disproved
soft-question
recreational-mathematics
big-list
provability
Number of ways to stack LEGO bricks
combinatorics
reference-request
recreational-mathematics
discrete-geometry
statistical-mechanics
Research Papers readable by undergraduates
reference-request
soft-question
recreational-mathematics
Pattern in number of digits in $(10^n)!$
number-theory
recreational-mathematics
pattern-recognition
oeis
integer-sequences
What is the best strategy for Cookie-Clicker-esque games?
optimization
recreational-mathematics
popular-math
Hat 'trick': Can one of them guess right?
combinatorics
recreational-mathematics
puzzle
game-theory
combinatorial-game-theory
Combinatorics riddle: keys and a safe
combinatorics
recreational-mathematics
Expert Minesweeper Probability Question
probability
recreational-mathematics
The Definite Integral Problem (with a twist)?
measure-theory
recreational-mathematics
riemann-integration
dirichlet-series
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