61210372853domain: NAppears in sequencesNumber of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock summing to 2 3 4 5 or 6.at n=6A251384Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to 2 3 4 5 or 6.at n=1A251389