8522985domain: NAppears in sequencesNumber of (n+1)X4 0..1 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=6A204611Number of (n+1)X8 0..1 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=2A204615