A023647 - OEIS

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A023647

Number of vertex-transitive graphs of valency 4 with n nodes.

2

1, 1, 1, 3, 3, 4, 2, 11, 3, 6, 8, 16, 4, 16, 4, 28, 11, 11, 5, 74, 9, 16, 16, 34, 7, 52, 7

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

OFFSET

5,4

REFERENCES

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

LINKS

Table of n, a(n) for n=5..31.

CROSSREFS

Column k=4 of A319367.

Sequence in context: A080216 A082924 A159636 * A332413 A239207 A329157

Adjacent sequences: A023644 A023645 A023646 * A023648 A023649 A023650

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane

EXTENSIONS

a(27)-a(31) added by Andrew Howroyd, Sep 18 2018

STATUS

approved