17048731domain: NAppears in sequencesNumber of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock having sum 9.at n=3A187639Number of (n+2) X 6 0..2 arrays with each 3 X 3 subblock having a sum of 9.at n=3A187643T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having sum 9.at n=24A187645