1992321domain: NAppears in sequencesNumber of (n+1) X 6 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=6A204710Number of (n+1) X 8 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=4A204712