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A152633
Number of permutations of floor(i*5/4), i=0..n-1, with all sums of 7 adjacent terms unique.
0
1, 2, 6, 24, 120, 720, 5040, 40320, 337920, 3074400, 30083040, 318394848, 3670837024, 46156955440, 601879734872, 8464853630808
OFFSET
1,2
CROSSREFS
Sequence in context: A152642 A152639 A152634 * A152646 A152630 A152629
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 10 2008
STATUS
approved