id:A054593 - OEIS Search Results

Search: id:A054593

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Number of disconnected labeled digraphs with n nodes.

+0
1

0, 1, 10, 262, 21496, 6433336, 7566317200, 35247649746352, 648839620390462336, 47230175230392839683456, 13617860445102311268975051520, 15577054031612736747163633737901312 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`a(n)=2^(n*(n-1))-A003027(n)`
	CROSSREFS	`Cf. A054592.` `Sequence in context: A001824 A024294 A084999 this_sequence A160481 A060608 A003388` `Adjacent sequences: A054590 A054591 A054592 this_sequence A054594 A054595 A054596`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 15 2000`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research