id:A054955 - OEIS Search Results

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Number of labeled Eulerian digraphs with n nodes and an even number of edges.

+0
4

1, 2, 8, 88, 3928, 688336, 438953344, 1023160206720, 8829110851362176, 284886609918484446976, 34640035331694391965082624 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.`
	CROSSREFS	`Adjacent sequences: A054952 A054953 A054954 this_sequence A054956 A054957 A054958` `Sequence in context: A009144 A132316 A136749 this_sequence A012299 A012295 A009486`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas, May 24 2000`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 05 2001`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.