A179356 Number of permutations of 1..n with i-9<=p(i)<=i+3.

1, 2, 6, 24, 96, 384, 1536, 6144, 24576, 98304, 380094, 1455278, 5590035, 21674069, 84319556, 328215940, 1277085588, 4967343120, 19314847344, 75083658528, 291820729296, 1134067262088, 4407118055652, 17128140069700, 66573579108036

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..400

Crossrefs

Sequence in context: A179341 A179345 A179350 * A179363 A084509 A334767

Adjacent sequences: A179353 A179354 A179355 * A179357 A179358 A179359

Keyword

nonn

Author

R. H. Hardin, Jul 11 2010

Status

approved