4560581070domain: NAppears in sequencesNumber of (n+1)X(n+1) 0..3 matrices with each 2X2 permanent equal.at n=3A224967Number of (n+1)X5 0..3 matrices with each 2X2 permanent equal.at n=3A224971T(n,k) is the number of (n+1) X (k+1) 0..3 matrices with each 2 X 2 permanent equal.at n=24A224975