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A047945
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Number of 10-colorings of an n X n grid, up to rotational symmetry.
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3
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1, 10, 2530, 250025500, 2500000025005000, 2500000000002500005000000, 250000000000000000250000000500000000, 2500000000000000000000002500000000005000000000000, 2500000000000000000000000000000025000000000000005000000000000000
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = (m^(n^2) + 2 m^((n^2 + 3 (n mod 2))/4) + m^((n^2 + (n mod 2))/2))/4, with m = 10.
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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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