|
| |
|
|
A372892
|
|
Total number of unlabeled simple maps on the sphere with n vertices.
|
|
0
|
|
|
|
1, 1, 2, 6, 25, 179, 2014, 31178, 580555, 12046072, 267836680, 6258809085, 151983244000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,3
|
|
|
COMMENTS
|
Computed by Brendan McKay.
a(n) is the same as the total number of distinct spherical drawings of connected graphs with n vertices.
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
Cf. A372853 (uniquely embeddable connected graphs).
Cf. A372854 (largest numbers of planar embeddings for connected graphs).
|
|
|
KEYWORD
|
nonn,more
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
