8668800

Appears in sequences

• Triangle T(n,k) of number of labeled directed multigraphs (with loops), without isolated vertices, with n arrows and k vertices (n = 1,2,.., k = 1..2*n).at n=39A120945
• Number of n X 5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,1 for x=0,1,2,3,4.at n=6A197893
• Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,1 for x=0,1,2,3,4.at n=4A197895