id:A135340 - OEIS Search Results

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Number of labeled non-planar projective-planar 2-connected K_{3,3}-free homeomorphically irreducible graphs with n vertices.

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1, 0, 420, 36960, 3651480, 453448800, 67528553400, 11697130922400, 2306595939347700, 509359060543132800, 124356566550728011500, 33226132945543622884800, 9635384706205021006042800 (list; graph; listen)

	OFFSET	`5,3`
	LINKS	`A. Gagarin et al., Table of n, a(n) for n = 5..20` `A. Gagarin, G. Labelle and P. Leroux, Counting labeled projective-planar graphs without a K_{3,3}-subdivision, 0406140.htm`
	CROSSREFS	`Cf. A104592, A104593.` `Sequence in context: A022046 A107510 A023911 this_sequence A135380 A035846 A046167` `Adjacent sequences: A135337 A135338 A135339 this_sequence A135341 A135342 A135343`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 07 2007`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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