3 problems

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Ashlock–Tillotson conjecture on the minimum length of superpermutations
Ashlock–Tillotson conjecture. The minimum length of an $n$ -superpermutation is
Conjecturerefutedcombinatorics permutations superpermutationsarXiv posted 2 days ago
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The uniqueness conjecture for minimal superpermutations
Uniqueness conjecture for minimal superpermutations. The minimal superpermutation on $n$ symbols is unique up to interchanging the roles of the symbols.
Conjectureopencombinatorics permutations superpermutationsarXiv posted 2 days ago
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The minimal superpermutation length conjecture
Minimal superpermutation length conjecture. The length of the minimal superpermutation on $n$ symbols is
Conjectureopencombinatorics permutations superpermutationsarXiv posted 2 days ago

Ashlock–Tillotson conjecture on the minimum length of superpermutations