A129036 Number of n-node triangulations of the double torus S_2 in which every node has degree >= 5.

0, 750, 53270, 1470379, 23973881, 281502783, 2652648134

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..15.

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

Crossrefs

Sequence in context: A053331 A237798 A015067 * A290272 A291524 A373206

Adjacent sequences: A129033 A129034 A129035 * A129037 A129038 A129039

Keyword

nonn

Author

N. J. A. Sloane, May 12 2007

Status

approved