4018409892domain: NAppears in sequencesNumber of (n+1)X(4+1) 0..3 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock.at n=3A236498T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock.at n=24A236500