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Search: id:A159733
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A159733 Number of permutations of 5 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum. +0
1
10, 90, 720, 5400, 38880, 272160, 1866240, 12597120, 83980800, 554273280, 3627970560, 23581808640, 152374763520, 979552051200, 6269133127680, 39965723688960, 253899891671040, 1608032647249920, 10155995666841600 (list; graph; listen)
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: A024132 A044261 A065690 this_sequence A038726 A009454 A004985

Adjacent sequences: A159730 A159731 A159732 this_sequence A159734 A159735 A159736

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Apr 20 2009

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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