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A152368 Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 5 adjacent terms unique. 0
1, 2, 6, 24, 120, 720, 4416, 30744, 239856, 2139504, 19700808, 202858542, 2208308468, 25994725052, 324119733220, 4313917683752 (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: A215718 A060727 A152350 * A152364 A152361 A152356

Adjacent sequences:  A152365 A152366 A152367 * A152369 A152370 A152371

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 02 2008

STATUS

approved

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Last modified June 1 07:40 EDT 2020. Contains 334759 sequences. (Running on oeis4.)