Discrete math(Pascal triangle)
118411
Computing the coefficient in a large polynomial
102307
Discrete Math Proofs Involving Real Numbers
8469
Dividing an equilateral triangle into N equal (possibly non-connected) parts
47737
Find all the possible values of $(a,b,c,d)$.
148745
Determine if a number is the sum of two triangular numbers.
108274
Sum of the first $n$ triangular numbers - induction
53499
Equilateral triangle inscribed in a triangle
117604
Sum of the rows of Pascal's Triangle.
151240
Short way for upper triangularization
148147
Three circles having centres on the three sides of a triangle
64658
How many associative binary operations for a set of two elements?
131736
Proving a triangle with different edge colors exists in a graph.
91229
Complexity of counting the number of triangles of a graph
94567
Triangle Draw Method
127069
Discrete Math - Counting
146746
A formula for the sum of the triangular numbers?
101476
If $A$, $B$ and $C$ are the angles of a triangle then find the value of $\Delta$