Top network posts

• 21 A functional equation with no solution
• 20 A game on a graph
• 17 An inequality on sequences with each term dividing sum of two neighbouring terms
• 12 A claim that a is a square
• 10 A Shapiro type inequality
• 10 $\text{lcm}(1,2,3,\ldots,n)\geq 2^n$ for $n\geq 7$
• 10 prove $ab\in A$, if $A=\{x^3+y^3+z^3-3xyz\mid x,y,z\in \mathbb Z\}$, $a,b\in A$
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