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A152320
Number of permutations of floor(i*6/5), i=0..n-1, with all sums of 3 adjacent terms unique.
0
1, 2, 6, 24, 96, 500, 3184, 19916, 152948, 1201392, 10694440, 105230548, 1070644410, 11962410912, 139253305766, 1788989811932
OFFSET
1,2
CROSSREFS
Sequence in context: A147903 A147895 A070945 * A267384 A152327 A152314
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2008
STATUS
approved