A094610 - OEIS

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A094610

Number of unlabeled 4-gonal 2-trees with n 4-gons.

1, 1, 1, 3, 8, 32, 141, 749, 4304, 26492, 169263, 1115015, 7507211, 51466500, 358100288, 2523472751, 17978488711, 129325796854, 938234533024, 6858551493579, 50478955083341 (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: A151541 A022563 A103939 * A064316 A009438 A091831` `Adjacent sequences: A094607 A094608 A094609 * A094611 A094612 A094613`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 06 2004`

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Last modified February 15 14:20 EST 2012. Contains 205811 sequences.