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A152645 Number of permutations of floor(i*9/5), i=0..n-1, with all sums of 7 adjacent terms unique. 0
1, 2, 6, 24, 120, 720, 5040, 40320, 344640, 3214080, 32654592, 362526336, 4287655360, 54096841216, 740614408736, 10969734238220 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

CROSSREFS

Sequence in context: A152641 A152644 A152637 * A054873 A324075 A193936

Adjacent sequences:  A152642 A152643 A152644 * A152646 A152647 A152648

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 10 2008

STATUS

approved

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Last modified July 26 14:45 EDT 2021. Contains 346294 sequences. (Running on oeis4.)