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A179960 Number of permutations of 1..n with no adjacent elements within 6 in value. 0
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 768, 98408, 6433728, 305193408, 11902581120, 412583686272 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,15
LINKS
Table of n, a(n) for n=0..20.
CROSSREFS
Sequence in context: A247080 A145124 A102969 * A344663 A167448 A320481
Adjacent sequences: A179957 A179958 A179959 * A179961 A179962 A179963
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 03 2010
EXTENSIONS
a(0)-a(12), a(20) from Alois P. Heinz, Dec 01 2018
STATUS
approved

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Last modified May 13 07:22 EDT 2024. Contains 372498 sequences. (Running on oeis4.)