%I #4 Mar 31 2012 12:35:45
%S 1,2,6,24,96,384,1536,6144,24576,98304,393216,1533498,5938186,
%T 23054395,90136861,353314032,1385566288,5432450100,21294783696,
%U 83458124976,327033963840,1281324830304,5019768637968,19664593984200,77034407176452
%N Number of permutations of 1..n with i-10<=p(i)<=i+3
%H R. H. Hardin, <a href="/A179363/b179363.txt">Table of n, a(n) for n=1..400</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Jul 11 2010