How<i>not</i>to prove the Alon-Tarsi conjecture
How<i>not</i>to prove the Alon-Tarsi conjecture
Abstract The sign of a Latin square is −1 if it has an odd number of rows and columns that are odd permutations; otherwise, it is +1. Let L E n and L o n be, respectively, the number of Latin squares of order n with sign +1 and −1. …