1484345363domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock summing to 3 4 or 5.at n=6A251345Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to 3 4 or 5.at n=1A251350