A246602 Number of connected bicubical graphs on 2n labeled nodes of two colors.

1, 24, 2040, 297000, 68922000, 24038380800

Offset: 3

Author

N. J. A. Sloane, Sep 08 2014

Keywords

• nonn
• more

Comments

Should a(7) be 68909400? - Andrew Howroyd, May 23 2018

References

• R. C. Read, Some Enumeration Problems in Graph Theory. Ph.D. Dissertation, Department of Mathematics, Univ. London, 1958.

Links

• R. C. Read, Letter to N. J. A. Sloane, Feb 04 1971

Crossrefs

Cf. A001501.