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A147951
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Number of permutations of floor(i*9/7), 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, 16, 74, 304, 1424, 7946, 39908, 223514, 1294348, 8736910, 58707788, 401926462, 3287231046, 25868828516
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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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