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A151649 Number of permutations of 5 indistinguishable copies of 1..n with exactly 4 adjacent element pairs in decreasing order. +0
1
0, 25, 182700, 84646275, 18746073375, 3085105337250 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A076445 A013835 A068737 this_sequence A122500 A116197 A023924

Adjacent sequences: A151646 A151647 A151648 this_sequence A151650 A151651 A151652

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) May 29 2009

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

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