A046911 - OEIS

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A046911

Number of isomorphism classes of irreducible quasiorders with n labeled points.

1, 1, 2, 4, 14, 62, 373, 2722 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	REFERENCES	`J. A. Wright, There are 718 6-point topologies, quasi-orderings and transgraphs, Notices Amer. Math. Soc., 17 (1970), p. 646, Abstract #70T-A106.`
	CROSSREFS	`Cf. A046912.` `Sequence in context: A027740 A132880 A019537 * A089127 A132852 A132079` `Adjacent sequences: A046908 A046909 A046910 * A046912 A046913 A046914`
	KEYWORD	`nonn,nice`
	AUTHOR	`John A. Wright.`

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Last modified February 17 12:38 EST 2012. Contains 206021 sequences.