A088895 - OEIS

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A088895

Number of intersecting T_0-antichains on a labeled n-set.

1, 2, 2, 4, 41, 2104, 1387915, 229780525655 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`An antichain on a set is a T_0-antichain if for every two distinct pointsf the set there exists a member of the antichain containing one but not the other point.`
	CROSSREFS	`Cf. A001206, A051185, A059083.` `Sequence in context: A067068 A032334 A032082 * A075806 A177956 A178981` `Adjacent sequences: A088892 A088893 A088894 * A088896 A088897 A088898`
	KEYWORD	`hard,nonn`
	AUTHOR	`Goran Kilibarda, Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 28 2003`

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.