1761607680

Appears in sequences

• a(n) = (n-4)*(n-3)*2^(n-2).at n=24A181407
• A double binomial sum involving absolute values.at n=6A268151
• Triangle read by rows: T(n,k) is the number of oriented graphs on n labeled nodes whose underlying graph is k-regular, k = 0..n-1.at n=34A351263
• Triangular array read by rows: T(n, k) is the number of ways that a k-element transitive tournament can occur as a subtournament of a larger tournament on n labeled vertices.at n=41A365638