5466340007domain: NAppears in sequencesNumber of (n+1)X4 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=6A204225Number of (n+1)X8 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=2A204229