2542369domain: NAppears in sequencesNumber of (n+1)X(n+1) 0..1 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=5A204706Number of (n+1)X7 0..1 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=5A204711