A058259 - OEIS

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A058259

Number of split semiorders on n points.

1, 2, 5, 16, 61, 279, 1491, 9267, 66447, 545173 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	REFERENCES	`P. C. Fishburn and J. A. Reeds, Counting split semiorders, Order, 18(2): 119-128, 2001.`
	CROSSREFS	`Cf. A000111, A058260.` `Sequence in context: A000111 A163747 A007976 * A033543 A124531 A129578` `Adjacent sequences: A058256 A058257 A058258 * A058260 A058261 A058262`
	KEYWORD	`nonn,hard,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 06 2000`

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Last modified February 17 02:08 EST 2012. Contains 205978 sequences.