1628628304domain: NAppears in sequencesNumber of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4.at n=5A233944Number of (n+1)X(6+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4.at n=2A233947