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A234920
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Number of (n+1) X (7+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
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1
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39720, 169128, 710304, 4151672, 22970144, 150606424, 911837036, 6251426440, 39266933948, 276635826688, 1778814863004, 12796967663216, 83932949350360, 614139960280996, 4103610483499364, 30438970840376560, 207060580976230816
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