31944000

Appears in sequences

• a(n) = n^3*(n+1)^3*(n+2)^3/72.at n=9A202109
• Number of unordered triples of self-avoiding paths with nodes that cover all vertices of a convex n-gon.at n=11A359404
• Triangle read by rows: T(n,k) is the number of sets of noncrossing paths of size k that cover n nodes arranged in a circle with one node paths disallowed, 0 <= k <= floor(n/2).at n=45A390893