21553541

Appears in sequences

• Number of nX3 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=5A207223
• Number of nX6 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=2A207226
• T(n,k)=Number of nXk 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=30A207228
• T(n,k)=Number of nXk 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal.at n=33A207228