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A147733
Number of permutations of 0..n-1 with all sums of 2 through 4 adjacent terms squared respectively unique.
0
1, 2, 6, 24, 120, 624, 4176, 31564, 271972, 2654974, 28246094, 320329694, 4116736768, 54680271878
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..14.
CROSSREFS
Sequence in context: A152342 A147735 A147734 * A147732 A147731 A152337
Adjacent sequences: A147730 A147731 A147732 * A147734 A147735 A147736
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2008
STATUS
approved

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Last modified September 28 05:41 EDT 2024. Contains 376274 sequences.
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