1441923

Appears in sequences

• Let X_{m,n}(q) be the chromatic polynomial of the complete bipartite graph K_{m,n}. Then a(n) is the negative of the coefficient of the linear term of X_{n,n}(q).at n=6A092552
• Number of permutations of length n within distance 5.at n=11A154654
• Number of permutations of [n] within distance floor(n/2) of a fixed permutation.at n=11A306267