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A352599
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Number of ways of placing A352426(n) nonattacking white-square queens on an n X n board.
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1
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1, 2, 4, 6, 2, 6, 64, 112, 68, 80, 32, 36, 28, 1414, 576, 384, 40, 70396, 40896, 22468, 9808, 1152, 252, 2246138, 482272, 185932
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OFFSET
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1,2
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COMMENTS
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Equivalently the number of ways of placing the maximal number of nonattacking black-square queens on an inverted n X n chessboard, that is a board with the a1 square white, the a2 and b1 squares black, etc.
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LINKS
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FORMULA
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PROG
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CROSSREFS
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Cf. A352241 (maximal number for black-squares), A352325 (black-squares counts), A352426 (maximal number for white-squares), this sequence (white-squares counts).
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KEYWORD
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nonn,hard,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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