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A147913
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Number of permutations of floor(i*7/6), 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, 54, 232, 1194, 5348, 28874, 153508, 823908, 4528784, 31785252, 218092306, 1562069462, 11268454920
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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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