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A145262
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1/10 of the number of 10-colorings of an n X n array symmetric about both diagonal and antidiagonal.
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0
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1, 9, 729, 53217, 34963569, 20702317689, 110322682043409, 529844580885375513, 22902074117193334140729, 892152255428734239380169153, 312784895917026013539918026623401
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listen;
history;
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internal format)
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OFFSET
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1,2
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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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STATUS
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approved
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