33053505704domain: NAppears in sequencesNumber of (n+1) X (4+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2 X 2 subblock.at n=4A236448Number of (n+1)X(5+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.at n=3A236449