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A179961 Number of permutations of 1..n with no adjacent elements within 7 in value. 0
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1664, 395576, 40495488, 2779045440, 147689145984 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,17

LINKS

Table of n, a(n) for n=0..21.

CROSSREFS

Sequence in context: A062585 A239505 A002490 * A160224 A129061 A233132

Adjacent sequences:  A179958 A179959 A179960 * A179962 A179963 A179964

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 03 2010

EXTENSIONS

a(0)-a(14), a(21) from Alois P. Heinz, Dec 01 2018

STATUS

approved

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Last modified September 17 12:45 EDT 2019. Contains 327131 sequences. (Running on oeis4.)