10982565

Appears in sequences

• Number of n X n binary matrices with every 1 vertically or horizontally adjacent to some 0.at n=4A133515
• Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 nX5 array.at n=4A218351
• T(n,k) = Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 n X k array.at n=40A218354