2227575108domain: NAppears in sequencesNumber of (n+1)X4 0..2 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.at n=5A205288Number of (n+1)X7 0..2 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.at n=2A205291