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A152366
Number of permutations of floor(i*9/5), i=0..n-1, with all sums of 5 adjacent terms unique.
0
1, 2, 6, 24, 120, 720, 4800, 34944, 284112, 2610000, 25619416, 281967300, 3260094820, 40530153902, 544648728448, 7866179354326
OFFSET
1,2
CROSSREFS
Sequence in context: A177543 A189842 A189271 * A147740 A147739 A147738
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2008
STATUS
approved