A179341 - OEIS

%I #11 Dec 02 2012 07:04:28

%S 1,2,6,24,96,384,1536,5658,20266,72955,268381,994512,3686128,13633620,

%T 50340576,185671416,684550020,2524915648,9317169000,34387796485,

%U 126912448549,468345021626,1728237116326,6377253266492,23532426206416

%N Number of permutations of 1..n with i-6<=p(i)<=i+3.

%H R. H. Hardin, <a href="/A179341/b179341.txt">Table of n, a(n) for n = 1..400</a>

%H Vaclav Kotesovec, <a href="/A179341/a179341.txt">G.f. for A179341</a>

%F G.f.: see link above. - _Vaclav Kotesovec_, Dec 01 2012

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 11 2010