4556324929domain: NAppears in sequencesNumber of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having zero permanent.at n=3A206247Number of (n+1)X5 0..3 arrays with every 2X2 subblock having zero permanent.at n=3A206251T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock having zero permanent.at n=24A206255