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Number of permutations of 1..n with i-10<=p(i)<=i+4
1

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

%S 1,2,6,24,120,600,3000,15000,75000,375000,1875000,8981784,42195774,

%T 197451926,929043391,4418144281,21115063084,101076625300,483821382744,

%U 2314379964864,11064448856064,52869709237824,252527695995264

%N Number of permutations of 1..n with i-10<=p(i)<=i+4

%H R. H. Hardin, <a href="/A179364/b179364.txt">Table of n, a(n) for n=1..400</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Jul 11 2010