1066263778

Appears in sequences

• Number of n X n 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.at n=3A207529
• Number of nX4 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.at n=3A207531
• T(n,k)=Number of nXk 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.at n=24A207535