544875737

Appears in sequences

• Number of n X 3 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=4A209087
• Number of nX5 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=2A209089
• T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=23A209092
• T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=25A209092