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A108239
Number of triangulated surfaces with n vertices.
4
1, 1, 3, 9, 43, 655, 42426, 11590894, 12561206794
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OFFSET
4,3
LINKS
Table of n, a(n) for n=4..12.
F. H. Lutz,
Enumeration and random realization of triangulated surfaces
, arXiv:math/0610022 [math.CO], 2006-2007.
F. H. Lutz,
The Manifold Page
.
T. Sulanke and F. H. Lutz,
Isomorphism free lexicographic enumeration of triangulated surfaces and 3-manifolds
, arXiv:math/0610022 [math.CO], 2006-2007.
CROSSREFS
Cf.
A000109
.
Sequence in context:
A232216
A167143
A136732
*
A218921
A262128
A028858
Adjacent sequences:
A108236
A108237
A108238
*
A108240
A108241
A108242
KEYWORD
nonn
,
hard
,
more
,
nice
AUTHOR
Ralf Stephan
, Jun 17 2005
EXTENSIONS
a(11)-a(12) from Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 08 2006
STATUS
approved
