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A151637 Number of permutations of 3 indistinguishable copies of 1..n with exactly 7 adjacent element pairs in decreasing order. 0
0, 6750, 40241088, 40396577931, 18096792917796, 5183615502649800 (list; graph; refs; listen; history; internal format)
OFFSET

3,2

CROSSREFS

Sequence in context: A064160 A204615 A204799 * A031986 A206096 A031832

Adjacent sequences:  A151634 A151635 A151636 * A151638 A151639 A151640

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) May 29 2009

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.