18479672376domain: NAppears in sequencesNumber of (n+1)X5 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=5A209810Number of (n+1)X7 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=3A209812