8437796016

Appears in sequences

• Number of permutations of 6 copies of 1..n with no element equal to another within a distance of 1.at n=4A321382
• Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the number of permutations of n copies of 1..k with no element equal to another within a distance of 1.at n=41A322093