91137domain: NAppears in sequencesNumber of (n+1) X 4 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=7A204708T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=47A204713