A054590 - OEIS

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A054590

Number of disconnected digraphs with n nodes.

0, 1, 3, 19, 244, 10101, 1562298, 885237542, 1795141933300, 13031553571814674, 341286507770733602176, 32523592049568306757117737, 11366810480400463340177768296746 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	COMMENTS	`a(n)=A000273(n)-A003085(n)`
	LINKS	`Table of n, a(n) for n=1..13.`
	CROSSREFS	`Cf. A000719.` `Sequence in context: A157675 A135754 A118023 * A069344 A173799 A003011` `Adjacent sequences: A054587 A054588 A054589 * A054591 A054592 A054593`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic, Apr 14 2000`
	STATUS	`approved`

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Last modified June 17 23:56 EDT 2013. Contains 226327 sequences.