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A152515 1/7 of the number of permutations of 6 indistinguishable copies of 1..n with exactly 4 local maxima. 0
0, 50, 321315, 824734660, 1615456263653, 2896390530019554 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A152514 A015062 A015038 * A111402 A174732 A087408

Adjacent sequences:  A152512 A152513 A152514 * A152516 A152517 A152518

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Dec 06 2008

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Last modified February 15 07:42 EST 2012. Contains 205717 sequences.