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A129039 Number of n-node triangulations of the double torus S_3 in which every node has degree >= 4. 0
0, 20, 65546, 23650152 (list; graph; refs; listen; history; text; internal format)
OFFSET

9,2

REFERENCES

M. Jungerman and G. Ringel, Minimal triangulations on orientable surfaces, Acta Math. 145 (1980), 121-154.

LINKS

Table of n, a(n) for n=9..12.

Thom Sulanke, Generating triangulations of surfaces (surftri), (also subpages).

CROSSREFS

Sequence in context: A129041 A129040 A159370 * A129038 A165344 A348646

Adjacent sequences:  A129036 A129037 A129038 * A129040 A129041 A129042

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 12 2007

STATUS

approved

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Last modified August 18 21:33 EDT 2022. Contains 356215 sequences. (Running on oeis4.)