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A206480 (Number of permutations of {1,2,...,n} for which sums of five consecutive numbers (with wraparound) are all distinct)/2n 0
60, 46, 690, 2529, 67636, 184014, 2374017, 19353643 (list; graph; refs; listen; history; text; internal format)
OFFSET
6,1
COMMENTS
Essentially different ways 1,2,3,...n can be placed around a circle so that sums of five consecutive numbers are distinct.
LINKS
EXAMPLE
Some examples of such permutations are: 12568374; 13756824; and 16253847
CROSSREFS
Sequence in context: A133000 A033380 A094086 * A230742 A112025 A060512
KEYWORD
nonn
AUTHOR
Steve Butler, Feb 08 2012
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)