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A089429 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082339/A082340. 1
1, 1, 2, 4, 10, 26, 74, 218, 672, 2134, 6964, 23206, 78724, 271014, 944766, 3328872, 11838378, 42441326, 153236900, 556746772, 2034098988 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
The number of orbits to which the corresponding automorphism(s) partitions the set of A000108(n) binary trees with n internal nodes.
LINKS
CROSSREFS
Sequence in context: A230662 A351642 A206464 * A049143 A089404 A006123
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 29 2003
STATUS
approved

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Last modified April 15 11:55 EDT 2024. Contains 371681 sequences. (Running on oeis4.)