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A151593 Number of permutations of 3 indistinguishable copies of 1..n arranged in a circle with exactly 5 adjacent element pairs in decreasing order. 0
0, 117, 149520, 26591700, 2321730306, 143576370000, 7341810391656 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,2
LINKS
Table of n, a(n) for n=2..8.
CROSSREFS
Sequence in context: A194613 A079196 A113798 * A263425 A066923 A039556
Adjacent sequences: A151590 A151591 A151592 * A151594 A151595 A151596
KEYWORD
nonn
AUTHOR
R. H. Hardin May 21 2009
STATUS
approved

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Last modified May 16 08:15 EDT 2024. Contains 372549 sequences. (Running on oeis4.)