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A152505 1/10 of the number of permutations of 4 indistinguishable copies of 1..n with exactly 3 local maxima. 0
0, 3, 1008, 172573, 24118698, 3148308323, 401420959948 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

CROSSREFS

Sequence in context: A318480 A167069 A024046 * A139301 A004803 A065604

Adjacent sequences:  A152502 A152503 A152504 * A152506 A152507 A152508

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 06 2008

STATUS

approved

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Last modified November 15 21:31 EST 2019. Contains 329151 sequences. (Running on oeis4.)