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A147943
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Number of permutations of floor(i*4/3), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
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0
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1, 2, 6, 24, 74, 312, 1620, 7876, 41114, 262142, 1532832, 9946476, 74352024, 512825612, 3896130434, 33601759994
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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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