id:A054914 - OEIS Search Results

Search: id:A054914

Displaying 1-1 of 1 results found.

page 1

Number of labeled connected digraphs with n nodes such that complement is also connected.

+0
1

1, 2, 44, 3572, 1005584, 1060875152, 4382913876704, 71987098738435232, 4721068803628864289024, 1237845578934919489219757312, 1298046978912816702510086132201984 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.`
	FORMULA	`2*A003027(n)-A053763(n).`
	CROSSREFS	`Sequence in context: A001627 A094397 A054732 this_sequence A048566 A041241 A019579` `Adjacent sequences: A054911 A054912 A054913 this_sequence A054915 A054916 A054917`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas, May 23 2000`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Jul 17 2000`

page 1

Search completed in 0.002 seconds

Last modified September 5 17:15 EDT 2008. Contains 143476 sequences.

AT&T Labs Research