57054

Appears in sequences

• a(n)=2*3^n - 18*4^n + 24*5^n.at n=5A091433
• Number of permutations of 1..n with i-6 <= p(i) <= i+4.at n=8A179342
• a(n) = n*(n + 1)*(7*n + 5)/6.at n=36A304993
• Triangle T(n,k) in which row n lists in increasing order the number of acyclic orientations of complete multipartite graphs K_lambda, where lambda is a partition of n into distinct parts; triangle T(n,k), n>=0, k = 1..A000009(n), read by rows.at n=31A370614
• Number T(n,k,j) of acyclic orientations of the complete tripartite graph K_{n,k,j}; triangle of triangles T(n,k,j), n>=0, k=0..n, j=0..k, read by rows.at n=42A372261