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A206480
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(Number of permutations of {1,2,...,n} for which sums of five consecutive numbers (with wraparound) are all distinct)/2n
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0
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OFFSET
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6,1
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COMMENTS
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Essentially different ways 1,2,3,...n can be placed around a circle so that sums of five consecutive numbers are distinct.
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LINKS
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EXAMPLE
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Some examples of such permutations are: 12568374; 13756824; and 16253847
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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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