328104

Appears in sequences

• Triangle read by rows: T(n,k) = (n+1,k)-th element of (M^5-M)/4, where M is the infinite lower Pascal's triangle matrix, 1<=k<=n.at n=39A096039
• Triangle T(n, k, m) = (m+1)^n*t(n, m)*t(k, n-m)/(k! * (n-k)!), where T(0, k, m) = 1, t(n, k) = Product_{j=1..n} ( Sum_{i=0..j-1} (m+1)^i ), and t(n, 0) = n!, read by rows.at n=22A157285
• Molecular topological indices of the complete tripartite graphs K_{n,n,n}.at n=20A192491
• a(n) = A000203(A251720(n)).at n=18A268733
• Wiener index of the n X n rook complement graph.at n=27A292058