8,2

G. Ringel, Wie man die geschlossenen nichtorientierbaren Flaechen in moeglichst wenig Dreiecke zerlegen kann, Math. Ann. 130 (1955), 317-326.

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

Sequence in context: A078933 A064029 A057645 this_sequence A099690 A107021 A107022

Adjacent sequences: A129057 A129058 A129059 this_sequence A129061 A129062 A129063

nonn

N. J. A. Sloane (njas(AT)research.att.com), May 13 2007