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A152342
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Number of permutations of floor(i*7/6), i=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, 3840, 25248, 196220, 1615028, 14859898, 145410452, 1615257302, 18902138116, 234645759088, 3068072303286
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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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