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A068276
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1/9 the number of colorings of an n X n rhombic hexagonal array with 9 colors.
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1
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1, 392, 5765144, 3181273031384, 65865666949993359176, 51166369594150205333793355592, 1491342760953091009621584639091222226600, 1630938910749494351643174313469316936138973479205208
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