170968375846domain: NAppears in sequencesNumber of (n+1)X(n+1) 0..2 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock.at n=6A236057Number of (n+1)X(7+1) 0..2 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock.at n=6A236064