A023644 - OEIS

More Web Proxy on the site http://driver.im/

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

A023644

Vertex-transitive graphs of valency 9 with 2n nodes.

1

1, 4, 6, 40, 54, 168, 94, 1473, 286

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

OFFSET

5,2

REFERENCES

CRC Handbook of Combinatorial Designs, 1996, p. 649.

LINKS

Table of n, a(n) for n=5..13.

CROSSREFS

Sequence in context: A125081 A175349 A281223 * A319672 A355233 A377682

Adjacent sequences: A023641 A023642 A023643 * A023645 A023646 A023647

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved