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A174154
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Number of ways to place 6n nonattacking kings on a 12 x 2n chessboard.
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7
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1, 448, 30319, 976640, 21137959, 357365350, 5109144543, 64737165162, 749160010737, 8080813574550, 82425144219429, 803491953235264, 7545414941610145, 68680800264413920, 608889093898882615, 5278006575696293456, 44873569636443901967, 375159494582050088590, 3090799708762482416287
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OFFSET
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0,2
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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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EXTENSIONS
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STATUS
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approved
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