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A068290
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1/16 the number of colorings of an n X n staggered hexagonal array with 16 colors.
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1
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1, 2940, 1475791800, 126483570405921120, 1850863560812354903891313720, 4624299555529247811516226596312142467360, 1972644284777133055191294794721562929045198175857072600, 143675548262637787606663854942059513336275448208739220399687693160870240
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OFFSET
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1,2
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COMMENTS
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Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4.
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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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