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A151656 Number of permutations of 7 indistinguishable copies of 1..n with exactly 2 adjacent element pairs in decreasing order. +0
1
0, 441, 35623, 1561238, 59287158, 2165511047 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A057949 A057950 A014793 this_sequence A110996 A013769 A013899

Adjacent sequences: A151653 A151654 A151655 this_sequence A151657 A151658 A151659

KEYWORD

nonn

AUTHOR

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

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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