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A300643
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Number of nX5 0..1 arrays with every element equal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 9, 30, 316, 2998, 28089, 268615, 2552014, 24338903, 231985285, 2211326264, 21081277233, 200957956858, 1915723519711, 18262175095417, 174090604742721, 1659575837493437, 15820464143773812, 150813856777262673
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