A208493 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A208493

Number of pairs of complementary l_1-graphs among all graphs on n nodes.

0, 0, 1, 3, 18

(list; graph; refs; listen; history; text; internal format)

OFFSET

2,4

REFERENCES

Deza, Michel and Huang, Tayuan, Complementary l_1-graphs and related combinatorial structures, in Combinatorics and Computer Science (Brest, 1995), 74-90, Lecture Notes in Comput. Sci., 1120, Springer, Berlin, 1996.

S. Shpectorov, Complementary l_1-graphs, Discrete Math., 192 (1998), 323-331.

LINKS

Table of n, a(n) for n=2..6.

CROSSREFS

Sequence in context: A215913 A162713 A161473 * A082056 A082057 A161687

Adjacent sequences: A208490 A208491 A208492 * A208494 A208495 A208496

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 04 2012

STATUS

approved