A006441 Number of nonseparable toroidal tree-rooted maps with n + 4 edges and n + 1 vertices.

10, 595, 11010, 111650, 773640, 4104225, 17838730, 66390610, 218140650

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• more

Comments

The number of faces is 3. - Andrew Howroyd, Apr 05 2021

References

• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

• T. R. S. Walsh and A. B. Lehman, Counting rooted maps by genus. III: Nonseparable maps, J. Combinatorial Theory Ser. B 18 (1975), 222-259.

Crossrefs

Cf. A006414, A006415.

Extensions

Name clarified by Andrew Howroyd, Apr 05 2021