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A147949 Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique. 0
1, 2, 6, 16, 54, 232, 936, 5070, 25700, 139976, 795314, 4513652, 26295578, 160997802, 1236858656, 9227571868 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A147907 A147634 A147899 * A147940 A147931 A091217

Adjacent sequences:  A147946 A147947 A147948 * A147950 A147951 A147952

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2008

STATUS

approved

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Last modified January 24 07:08 EST 2022. Contains 350534 sequences. (Running on oeis4.)