A152331 - OEIS

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A152331

Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 3 adjacent terms unique.

0

1, 2, 6, 24, 96, 520, 2888, 19256, 141384, 1153758, 9954096, 95113642, 954777378, 10374152650, 118690353388, 1454505621506

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

CROSSREFS

Sequence in context: A267384 A152327 A152314 * A152324 A147887 A053502

Adjacent sequences: A152328 A152329 A152330 * A152332 A152333 A152334

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2008

STATUS

approved