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A159733 Number of permutations of 5 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum. 1
10, 90, 720, 5400, 38880, 272160, 1866240, 12597120, 83980800, 554273280, 3627970560, 23581808640, 152374763520, 979552051200, 6269133127680, 39965723688960, 253899891671040, 1608032647249920, 10155995666841600 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

LINKS

R. H. Hardin, Table of n, a(n) for n=2..100

FORMULA

a(n)=(copies*n)*(copies+1)^(n-2)

CROSSREFS

Sequence in context: A202919 A202576 A201723 * A038726 A009454 A162756

Adjacent sequences:  A159730 A159731 A159732 * A159734 A159735 A159736

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.