A089844 - OEIS

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A089844

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089865/A089866.

1, 1, 2, 4, 9, 23, 68, 205, 655, 2147, 7218, 24686, 85760, 301458, 1070820, 3836693, 13851191, 50333389, 183965474, 675825400, 2494114694 (list; graph; refs; listen; history; 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	`A. Karttunen, C-program for computing the initial terms of this sequence`
	CROSSREFS	`Sequence in context: A124461 A026898 A088930 * A113997 A125789 A058731` `Adjacent sequences: A089841 A089842 A089843 * A089845 A089846 A089847`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His_Firstname.His_Surname(AT)iki.fi), Dec 20 2003`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.