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Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutations A127379/A127380 and A127381/A127382.
4

%I #3 Mar 31 2012 13:21:14

%S 1,1,2,4,9,23,62,179,543,1705,5482,18056,60634,206824

%N Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutations A127379/A127380 and A127381/A127382.

%H D. Callan, <a href="http://www.stat.wisc.edu/~callan/papers/Motzkin_manifestation/">A Bijection on Dyck Paths and Its Cycle Structure</a>, 2006, 17pp.

%Y A127383.

%K nonn

%O 0,3

%A _Antti Karttunen_, Jan 16 2007