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A159723 Number of permutations of 3 indistinguishable copies of 1..n arranged in a circle with exactly 3 local maxima. 0
2, 924, 130672, 11798800, 882163680, 60299781248, 3933244436480 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

CROSSREFS

Sequence in context: A050247 A159705 A203609 * A070967 A070927 A070922

Adjacent sequences:  A159720 A159721 A159722 * A159724 A159725 A159726

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Apr 20 2009

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Last modified February 16 04:18 EST 2012. Contains 205860 sequences.