140229804

Appears in sequences

• 4-dimensional Catalan numbers.at n=6A005790
• Array T(m,n) read by antidiagonals: T(m,n) (m >= 1, n >= 1) = number of ways to arrange the numbers 1,2,...,m*n in an m X n matrix so that each row and each column is increasing.at n=39A060854
• Array T(m,n) read by antidiagonals: T(m,n) (m >= 1, n >= 1) = number of ways to arrange the numbers 1,2,...,m*n in an m X n matrix so that each row and each column is increasing.at n=41A060854
• Multi-dimensional Catalan numbers: diagonal T(n,n+2) of A060854.at n=3A060856
• Distinct values in A114717 in order of appearance.at n=26A119841
• Triangle read by rows: T(n,k) is the number of n X k Young tableaux, where 0 <= k <= n.at n=25A321716
• 6-dimensional Catalan numbers.at n=4A321975
• a(n) = 120*(3*n)!/(n!*(n+2)!^2).at n=8A361029