=+14. Consider the n! different permutations = (1,...,n) of the set {1,...,n} equipped with the uniform

=+14. Consider the n! different permutations σ = (σ1,...,σn) of the set

{1,...,n} equipped with the uniform distribution πσ = 1/n! [49].

Declare a permutation ω to be a neighbor of σ if there exist two indices i = j such that ωi = σj , ωj = σi, and ωk = σk for k ∈ {i, j}.