147006

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=2A207529
• Number of nX3 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.at n=2A207530
• 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=12A207535