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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
OFFSET
1,2
CROSSREFS
Sequence in context: A215718 A060727 A152350 * A152364 A152361 A152356
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2008
STATUS
approved