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Search: id:A151609
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A151609 Number of permutations of 6 indistinguishable copies of 1..n arranged in a circle with exactly 4 adjacent element pairs in decreasing order. +0
1
0, 300, 753975, 188612400, 26312329155, 2954839555836 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A063935 A015275 A051306 this_sequence A004225 A004226 A070192

Adjacent sequences: A151606 A151607 A151608 this_sequence A151610 A151611 A151612

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) May 21 2009

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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