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A184292
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Number of distinct n X 2 toroidal 0..7 arrays.
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2
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36, 1072, 43800, 2098720, 107377488, 5726689312, 314146329192, 17592189191200, 1000799924679192, 57646075391404480, 3353953468337642808, 196765270128159928000, 11624286727084886518896, 690814754065973604816352, 41264667976180515380660448
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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