A089872 - OEIS

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A089872

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A071665/A071666.

1, 1, 2, 3, 6, 16, 40, 93, 226, 540, 1336, 3284, 8068, 19664, 47880, 116407, 282866, 687666, 1673920, 4077020, 9929636 (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: A159343 A159341 A159342 * A006402 A145860 A087983` `Adjacent sequences: A089869 A089870 A089871 * A089873 A089874 A089875`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His_Firstname.His_Surname(AT)iki.fi), Nov 29 2003`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.