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A152332
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Number of permutations of 0..n-1 with all sums of 4 adjacent terms unique.
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0
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1, 2, 6, 24, 120, 608, 3684, 23136, 174536, 1409200, 12672984, 123070048, 1287015142, 14387894342, 172259484314, 2186934015808
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OFFSET
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1,2
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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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STATUS
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approved
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