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A179065
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Number of non-attacking placements of 10 rooks on an n X n board.
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3
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0, 0, 0, 0, 0, 0, 0, 0, 0, 3628800, 439084800, 15807052800, 296821324800, 3636061228800, 32724551059200, 232707918643200, 1372501805875200, 6948290392243200, 30967071995059200, 123868287980236800
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OFFSET
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1,10
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (21, -210, 1330, -5985, 20349, -54264, 116280, -203490, 293930, -352716, 352716, -293930, 203490, -116280, 54264, -20349, 5985, -1330, 210, -21, 1).
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FORMULA
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a(n) = 10! * binomial(n, 10)^2.
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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