id:A054590 - OEIS Search Results

Search: id:A054590

Displaying 1-1 of 1 results found.

page 1

Number of disconnected digraphs with n nodes.

+0
1

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

	OFFSET	`1,3`
	COMMENT	`a(n)=A000273(n)-A003085(n)`
	CROSSREFS	`Cf. A000719.` `Sequence in context: A157675 A135754 A118023 this_sequence A069344 A003011 A143597` `Adjacent sequences: A054587 A054588 A054589 this_sequence A054591 A054592 A054593`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 14 2000`

page 1

Search completed in 0.002 seconds

Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research