266389315989domain: NAppears in sequencesNumber of (n+1)X(4+1) 0..2 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal.at n=6A236824Number of (n+1)X(7+1) 0..2 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal.at n=3A236827