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A152324 Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 3 adjacent terms unique. +0
1
1, 2, 6, 24, 96, 520, 3084, 20712, 148184, 1207076, 10350164, 98187296, 1025470092, 11481572034, 135075238176, 1690000587626 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A152327 A152314 A152331 this_sequence A147887 A053502 A053504

Adjacent sequences: A152321 A152322 A152323 this_sequence A152325 A152326 A152327

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Dec 02 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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