id:A079566 - OEIS Search Results

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Number of unlabeled, connected graphs on n vertices which have no induced subgraph isomorphic to a C4 (cycle on 4 vertices.) Also known as "square-free" graphs.

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1, 1, 2, 5, 16, 63, 313, 2014, 16724 (list; graph; listen)

	OFFSET	`1,3`
	REFERENCES	`Z. Blazski, M. Hujter, M. Pluhar and Zs. Tuza, "Graphs with no C4 and 2K2," Discrete Math. 115 (1993) 51-55.`
	CROSSREFS	`Sequence in context: A022494 A136127 A111004 this_sequence A059685 A000112 A127083` `Adjacent sequences: A079563 A079564 A079565 this_sequence A079567 A079568 A079569`
	KEYWORD	`more,nonn`
	AUTHOR	`Jim Nastos (nastos(AT)gmail.com), Jan 24 2003`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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