A179962 Number of permutations of 1..2*n+4 with no adjacent elements within n in value.

24, 90, 368, 1496, 6056, 24440, 98408, 395576, 1588136, 6370040, 25532648, 102288056

Offset

0,1

Links

Table of n, a(n) for n=0..11.

Crossrefs

Sequence in context: A010012 A256718 A233637 * A076799 A297540 A365191

Adjacent sequences: A179959 A179960 A179961 * A179963 A179964 A179965

Keyword

nonn,more

Author

R. H. Hardin, Aug 03 2010

Extensions

a(0)=24 prepended by Seiichi Manyama, Dec 01 2018

Status

approved