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A147922
Number of permutations of floor(i*8/7), i=0..n-1, with all sums of two adjacent terms unique.
0
1, 2, 6, 16, 54, 232, 1132, 7628, 50462, 382076, 2944618, 24671640, 216525368, 2053251888, 23564654276, 271943000896
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..16.
CROSSREFS
Sequence in context: A147931 A091217 A147891 * A147913 A147904 A147896
Adjacent sequences: A147919 A147920 A147921 * A147923 A147924 A147925
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2008
STATUS
approved

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Last modified September 28 15:15 EDT 2024. Contains 376297 sequences.
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