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A147913
Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
0
1, 2, 6, 16, 54, 232, 1194, 5348, 28874, 153508, 823908, 4528784, 31785252, 218092306, 1562069462, 11268454920
OFFSET
1,2
CROSSREFS
Sequence in context: A091217 A147891 A147922 * A147904 A147896 A147888
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2008
STATUS
approved