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A159726 Number of permutations of 3 indistinguishable copies of 1..n arranged in a circle with exactly 6 local maxima. +0
1
0, 0, 1256, 24483200, 55067152128, 57615626479712 (list; graph; listen)
OFFSET

2,3
CROSSREFS

Sequence in context: A062693 A067203 A080718 this_sequence A048130 A099592 A014575

Adjacent sequences: A159723 A159724 A159725 this_sequence A159727 A159728 A159729

KEYWORD

nonn

AUTHOR

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

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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