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A250995
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Number of (1+1) X (n+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
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1
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40, 169, 646, 2359, 8298, 28450, 95628, 316568, 1035294, 3352547, 10768211, 34351193, 108947285, 343813542, 1080310949, 3381653079, 10550153029, 32817177900, 101810982442, 315106120063, 973171192417, 2999712678334
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