A179343 - OEIS

%I #4 Mar 31 2012 12:35:45

%S 1,2,6,24,120,720,4320,22920,112056,525642,2441314,11467387,55213453,

%T 269051424,1315752712,6425315520,31265476224,151611449472,

%U 733893891840,3552247523904,17205089767968,83394449973808,404426778909176

%N Number of permutations of 1..n with i-6<=p(i)<=i+5

%H R. H. Hardin, <a href="/A179343/b179343.txt">Table of n, a(n) for n=1..400</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Jul 11 2010