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A006435 Number of tree-rooted toroidal maps with 3 faces and n vertices and without separating loops or isthmuses.
(Formerly M4755)
1
10, 705, 14478, 154420, 1092640, 5826492, 25240410, 93203561, 303143970, 889015725 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
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. A006434.
Sequence in context: A214108 A174061 A058174 * A108603 A053468 A008272
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
Name clarified by Andrew Howroyd, Apr 04 2021
STATUS
approved

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Last modified March 28 13:25 EDT 2024. Contains 371254 sequences. (Running on oeis4.)