id:A007869 - OEIS Search Results

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Complementary pairs of graphs on n nodes. Also unlabeled graphs with n nodes and an even number of edges.

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8

1, 1, 2, 6, 18, 78, 522, 6178, 137352, 6002584, 509498932, 82545586656, 25251015686776, 14527077828617744, 15713242984902154384, 32000507852263779299344, 122967932076766466347469888 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`P. J. Cameron, Sequences realized by oligomorphic permutation groups, J. Integ. Seqs. Vol. 3 (2000), #00.1.5.`
	CROSSREFS	`Average of A000088 and A000171, the latter interspersed with zeros.` `Cf. A054960 for graphs with an odd number of edges.` `Sequence in context: A162058 A113844 A141580 this_sequence A118476 A144557 A118455` `Adjacent sequences: A007866 A007867 A007868 this_sequence A007870 A007871 A007872`
	KEYWORD	`nonn,nice`
	AUTHOR	`Peter Cameron (P.J.Cameron(AT)qmw.ac.uk)`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 19 2000`

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

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