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A152338
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Number of permutations of floor(i*6/5), 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, 640, 3924, 27552, 197364, 1677640, 16002846, 159888834, 1733332410, 19754032288, 242687959560, 3279596665638
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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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