21958547501domain: NAppears in sequencesNumber of (n+1)X5 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=5A204226Number of (n+1)X7 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=3A204228