538751292domain: NAppears in sequencesNumber of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26.at n=5A233661Number of (n+1)X(6+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26.at n=2A233664