|
|
A006395
|
|
Number of unsensed connected planar maps with n nodes and without loops or parallel edges.
(Formerly M2494)
|
|
0
|
|
|
1, 1, 3, 5, 14, 42, 150, 624, 2947, 15079, 82607, 474030
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,3
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|