9797170648domain: NAppears in sequencesNumber of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 2.at n=6A233640Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 2.at n=3A233643