32549159domain: NAppears in sequencesNumber of (n+1)X(3+1) 0..2 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock.at n=6A236060Number 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=2A236064