How many triangles with same color are there using $6$ and $n$ points?
117349
counting triangles in a graph or its complement
123939
N circles in the plane
127866
Two triangles and their content ratio
99335
Sum of all triangle numbers
34452
In how many ways can you choose $k$ numbers out of $\{1,2,3,\dots,n\}$ so none of them is consecutive?
126583
Coloring points on an n-gon
142144
Countable or uncountable; family of disjoint triangles?
155372
Find the number of permutations in $S_n$ containing fixed elements in one cycle
23916
Does 3-partite graph with at least n+1 edges per vertex have a triangle?
79777
An olympiad Geometry problem involving triangles
26081
What will be total number of solutions of $a+b+c = n$?
130751
Lower bound for monochromatic triangles in $K_n$
52056
Chromatic Triangles on a $K_{17}$ graph
96478
probability that a candidate comes with all $3$ pens having the same colour is $?$
40852
Number of ways of distributing $n$ identical objects among $r$ groups
78407
Are there infinitely-many numbers that are both square and triangular?
117330
What is the name of a squircle with three, five, six or more corners?