%I #3 Mar 31 2012 12:35:18
%S 0,11640,10421120,2396959400,324776205024,34107115135800
%N Number of permutations of 4 indistinguishable copies of 1..n arranged in a circle with exactly 5 adjacent element pairs in decreasing order.
%K nonn
%O 2,2
%A _R. H. Hardin_ May 21 2009