271942421

Appears in sequences

• Number of n X 2 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=6A203185
• Number of nX7 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=1A203190
• T(n,k)=Number of nXk 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=29A203191