24759554960domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock.at n=5A236655T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock.at n=22A236657