A120707 - OEIS

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A120707

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A120705/A120706.

1, 1, 1, 2, 3, 6, 10, 20, 39, 72, 138, 286, 512 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,4`
	COMMENTS	`The number of orbits to which the corresponding automorphisms partition the set of A000108(n) binary trees of n internal nodes.`
	LINKS	`Table of n, a(n) for n=0..12.`
	CROSSREFS	`Sequence in context: A123423 A005195 A052843 * A047111 A106741 A068991` `Adjacent sequences: A120704 A120705 A120706 * A120708 A120709 A120710`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen, Jun 28 2006`
	STATUS	`approved`

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Last modified June 19 05:40 EDT 2013. Contains 226390 sequences.