id:A054942 - OEIS Search Results

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Number of connected oriented graphs on n nodes with an even number of edges.

+0
1

1, 0, 12, 304, 27664, 6990848, 5179182272, 11396324423680, 74944172893348096, 1476405354971703541760, 87208352627656970763963392, 15450530398306943408624578330624, 8211400756816955708062672329408385024 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.`
	CROSSREFS	`Sequence in context: A041264 A109867 A014130 this_sequence A052795 A053064 A060010` `Adjacent sequences: A054939 A054940 A054941 this_sequence A054943 A054944 A054945`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 24 2000`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 11 2003`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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