%I #4 Mar 31 2012 12:35:45
%S 1,2,6,24,120,720,4320,25920,155520,933120,5223720,28065624,148043310,
%T 779305142,4138663683,22326100565,121438789028,662769584476,
%U 3618469944096,19732129903872,107425688617728,584061299353728
%N Number of permutations of 1..n with i-9<=p(i)<=i+5
%H R. H. Hardin, <a href="/A179358/b179358.txt">Table of n, a(n) for n=1..400</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Jul 11 2010