5659776

Appears in sequences

• Let df(n,k) = Product_{i=0..k-1} (n-i) be the descending factorial and let P(m,n) = df(n-1,m-1)^2*(2*n-m)/((m-1)!*m!). Sequence gives P(4,n).at n=18A132458
• Number of (n+2) X 3 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=28A202093
• Number of (n+1)X(2+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=29A250426