938845280domain: NAppears in sequencesNumber of (n+1)X(3+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock equal.at n=6A237094Number of (n+1)X(7+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock equal.at n=2A237098