9918542118

Appears in sequences

• Number of nX3 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=5A207474
• Number of n X 6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=2A207477
• T(n,k)=Number of nXk 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=30A207479