12900566348domain: NAppears in sequencesNumber of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock summing to less than 4.at n=3A184555Number of (n+1)X5 0..2 arrays with no 2X2 subblock summing to less than 4.at n=3A184559T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock summing to less than 4.at n=24A184564