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A147916
Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
0
1, 2, 6, 16, 54, 232, 936, 3880, 23002, 127008, 720116, 4318818, 26024362, 158973744, 1022131470, 6808137758
OFFSET
1,2
CROSSREFS
Sequence in context: A147728 A147727 A147726 * A147907 A147634 A147899
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2008
STATUS
approved