768149650

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, column or nw-se diagonal.at n=3A207473
• Number of n X 4 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=3A207475
• 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=24A207479