13930389246domain: NAppears in sequencesNumber of (n+1)X(3+1) 0..2 arrays with the upper median unequal to the lower median in every 2X2 subblock.at n=6A236273Number of (n+1)X(7+1) 0..2 arrays with the upper median unequal to the lower median in every 2X2 subblock.at n=2A236277