271375

Appears in sequences

• Number of n X n matrices in which each row is a permutation of [1..n] and which contain no column rises.at n=3A212806
• Erroneous version of A212806.at n=3A212845
• Number of n X 4 arrays with rows being permutations of 0..3 and no column j greater than column j-1 in all rows.at n=3A212851
• T(n,k) = number of n X k arrays with rows being permutations of 0..k-1 and no column j greater than column j-1 in all rows (n, k >= 1).at n=24A212855
• Number of 4 X n arrays with rows being permutations of 0..n-1 and no column j greater than column j-1 in all rows.at n=4A212857
• Starts of runs of 3 consecutive integers that are divisible by the cube of their least prime factor.at n=28A365868