Stars and bars with at least 1 group of 2 adjacent bars
35515
Find the number of $(m+n)$ digit binary sequences with $m$ $0$'s and $n$ $1$'s such that no two $1$'s are adjacent
2731
Groups of even order have an element whose order is 2.
52089
Group of $2n$ elements, $n$ odd, is not simple
140977
Why $\bar{z_1}z_2+\bar{z_2}z_3+\bar{z_3}z_1 \in \mathbb R \iff z_1, z_2, z_3 \text{ are along the same line}$
1405
Arrangements of a,a,a,b,b,b,c,c,c in which no three consecutive letters are the same
147236
How to select sub-lists having at least one element that matches a pattern
49158
Multiplicity of eigenvalues
47356
If : $\tan^2\alpha \tan^2\beta +\tan^2\beta \tan^2\gamma + \tan^2\gamma \tan^2\alpha + 2\tan^2\alpha \tan^2\beta \tan^2\gamma =1\dots$
10908
Associated elements in a ring
20865
Bizarre spacing with 4 $\star$s
275
Two consecutive spaces
80250
Please help me with a tabular problem
108943
Combining the second elements of a set of ordered pairs based on their first element
102479
Horizontal bar chart with different colors for each bar
141101
Russia (2000) contest:Prove the existence of a pair of rows and columns with intersections differently coloured
120414
Separate two objects along an axis
75149
Individually labeled bars for bar graphs in matplotlib / Python