Erdős-Strauss Conjecture: Is there a simpler way to solve?
68172
Erdős-Straus conjecture
75101
Let G = (V, E) be a simple undirected graph with n = |V | ≥ 1 vertices...
144571
A conjecture including binomial coefficients
87267
Conjecture similar to Fermat's Theorem.
100061
The Maximum possible order for an element $S_n$
57644
Lower bounds for ${{2n} \choose {n}}$
118674
Simple upper bound for $\binom{n}{k}$
38700
the Nordhaus-Gaddum problems for chromatic number of graph and its complement
10872
Solving Hardy Weinberg problems
8458
Combinatorics problem based on Ferrers graph
59419
Crafty solutions to the following limit
97314
Counting nearly-sorted permutations
42357
"All-different hypergraph coloring" - known problem?
93685
Erdős's proof of Sylvester's theorem
111954
Computing the cardinality of a combinatorial set
133344
How exactly does Simon's algorithm solve the Simon's problem?
50748
A pyramid $ABCDS$ in which all edges have different lengths and $|AS|+|CS|=|BS|+|DS|$