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A151579 Number of permutations of 1..n arranged in a circle with exactly 6 adjacent element pairs in decreasing order. 0
0, 7, 960, 38637, 882340, 14413894, 188690976, 2112659718, 21078701112, 192648942945, 1644431982848 (list; graph; refs; listen; history; text; internal format)
OFFSET

6,2

LINKS

Table of n, a(n) for n=6..16.

CROSSREFS

Sequence in context: A038808 A068728 A028990 * A024098 A172918 A201070

Adjacent sequences:  A151576 A151577 A151578 * A151580 A151581 A151582

KEYWORD

nonn

AUTHOR

R. H. Hardin May 21 2009

STATUS

approved

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Last modified October 20 09:22 EDT 2014. Contains 248329 sequences.