1397061008domain: NAppears in sequencesNumber of (n+1)X4 0..2 arrays with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.at n=6A209892Number of (n+1)X8 0..2 arrays with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.at n=2A209896