A094653 - OEIS

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A094653

Number of unlabeled 9-gonal 2-trees with n 9-gons.

1, 1, 1, 5, 32, 343, 4505, 66603, 1045335, 17115162, 289107854, 5007144433, 88516438360, 1591949961503, 29053438148676, 536972307386326, 10034276171127780, 189331187319203010, 3603141751525175854 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	LINKS	`G. Labelle, C. Lamathe and P. Leroux, Labeled and unlabeled enumeration of k-gonal 2-trees`
	CROSSREFS	`Cf. A054581.` `Sequence in context: A023882 A109780 A093448 * A135250 A006926 A014374` `Adjacent sequences: A094650 A094651 A094652 * A094654 A094655 A094656`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 06 2004`

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Last modified February 15 16:39 EST 2012. Contains 205823 sequences.