195351371872domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..3 arrays with every 2X2 subblock summing to 4 5 6 7 or 8.at n=5A251493Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock summing to 4 5 6 7 or 8.at n=1A251497T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock summing to 4 5 6 7 or 8.at n=22A251499