2202663919domain: NAppears in sequencesNumber of (n+1)X5 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=6A204872Number of (n+1) X 8 0..3 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=3A204875