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A264787
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Number of colorings of an n X n grid with any number of interchangeable colors under rotational and reflectional symmetry.
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4
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1, 1, 7, 2966, 1310397193, 579823814813639193, 477464341236883456112705749206, 1340767144321669800049265230788088027597024910, 21516767919669856366796245458194341840929552797762722429430679631
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OFFSET
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0,3
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REFERENCES
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F. Harary and E. Palmer, Graphical Enumeration, Academic Press, 1973.
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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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