69503976144domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..3 arrays colored with the sets of distinct values in every 2X2 subblock.at n=5A236121T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the sets of distinct values in every 2X2 subblock.at n=22A236123