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A147732 Number of permutations of 0..n-1 with all sums of 2 through 3 adjacent terms squared respectively unique. 0
1, 2, 6, 24, 120, 624, 4176, 32620, 284384, 2803702, 29664334, 339061272, 4391825384, 58843870478, 866121264934 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

CROSSREFS

Sequence in context: A147735 A147734 A147733 * A147731 A152337 A152338

Adjacent sequences:  A147729 A147730 A147731 * A147733 A147734 A147735

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 11 2008

STATUS

approved

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Last modified December 1 14:10 EST 2021. Contains 349430 sequences. (Running on oeis4.)