login
Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082345/A082346.
0

%I #6 Mar 31 2012 14:02:17

%S 1,1,1,3,6,16,37,95,238,624,1650,4478,12356,34756,99313,288145,847366,

%T 2523092,7597834,23117382,71007196

%N Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082345/A082346.

%C The number of orbits to which the corresponding automorphism(s) partitions the set of A000108(n) binary trees with n internal nodes.

%H A. Karttunen, <a href="/A089408/a089408.c.txt">C-program for computing the initial terms of this sequence</a>

%K nonn

%O 0,4

%A _Antti Karttunen_, Nov 29 2003