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A147946 Number of permutations of floor(i*7/3), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique. 0
1, 2, 6, 24, 74, 368, 2214, 10892, 69096, 527234, 3431668, 27480534, 255515792, 1977816278, 19064332502, 208268352068 (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: A147934 A147925 A147917 * A147937 A147928 A147920

Adjacent sequences:  A147943 A147944 A147945 * A147947 A147948 A147949

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2008

STATUS

approved

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Last modified June 30 10:27 EDT 2022. Contains 354926 sequences. (Running on oeis4.)