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A181724
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The number of paths of a chess rook in a 8D hypercube, from (0..0) to (n..n), where the rook may move in steps that are multiples of (1,0..0), (0,1,0..0), ..., (0..0,1).
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1
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1, 40320, 214899027840, 2509137924026751360, 41795104403987233709518080, 852847938704373386478865686645120, 19846219244619878972245087341015659057280, 506348195597089273505079176351561351976609740160
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OFFSET
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0,2
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LINKS
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EXAMPLE
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a(1) = 40320 because there are 40320 rook paths from (0..0) to (1..1).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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