A246968 Erroneous version of A001500.

1, 4, 55, 2008, 153040, 20987840, 4672874360

Offset: 1

Author

N. J. A. Sloane, Sep 09 2014

Keywords

• dead

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. A001500.