3 problems

Conway–Guttman conjecture. For $q in {4321,4312}$, there is a constant $K$ such that

For $n=8,9,10,11,12$, let $A(n)$ be the number of Wilf classes and let $E(n)$ be the number of enumeration classes of one-relator binary operads with a relation of degree $n$. The…

Let $s$ and $t$ be patterns on binary trees. Two patterns are Wilf equivalent when their avoidance functions are equal, and they are enumerating equivalent when their enumerating g…