263725

Appears in sequences

• Number of n X n 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=2A203183
• Number of n X 3 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=2A203186
• 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=12A203191