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A279116
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Number of non-equivalent ways to place 7 non-attacking kings on an n X n board.
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7
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0, 0, 0, 0, 39, 6472, 311552, 5576682, 56289710, 389130774, 2059061646, 8924241327, 33134160010, 108698226956, 322211640480
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OFFSET
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1,5
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COMMENTS
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Rotations and reflections of placements are not counted. If they are to be counted, see A194788.
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LINKS
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EXAMPLE
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There are 39 non-equivalent ways to place 7 non-attacking kings on a 5 X 5 board, e.g., this one:
K...K
.....
K.K.K
.....
K...K
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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