A066317 - OEIS

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A066317

Number of rooted identity (asymmetric) planar trees that can be turned over.

1, 1, 1, 1, 2, 6, 25, 92, 341, 1225, 4366, 15522, 55312, 197965, 712244, 2577106, 9375361, 34284972, 125977465, 464938190, 1722817416, 6407307544, 23909159418, 89491715106, 335908316845, 1264097675776, 4768430557021 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	LINKS	`Index entries for sequences related to rooted trees`
	FORMULA	`a(n)=A066316(n-1)+1.`
	CROSSREFS	`Sequence in context: A073545 A103063 A030228 * A027104 A019048 A028302` `Adjacent sequences: A066314 A066315 A066316 * A066318 A066319 A066320`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Dec 13 2001`

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