|
|
A320421
|
|
Number of closed self-avoiding paths on square lattice with 2*n steps, A010566(n)/8.
|
|
0
|
|
|
0, 1, 3, 14, 70, 372, 2058, 11752, 68706, 409130, 2472646, 15127620, 93504944, 583032968, 3662883960, 23163461280, 147329432094, 941880843108, 6049001532148, 39007700026460, 252477751201074, 1639657957610596, 10680997864879592, 69772819359471480, 456959583009324200
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,3
|
|
COMMENTS
|
Rotations and reflections of the path are counted only once, but see A266549 for further elimination of path isomorphisms.
|
|
REFERENCES
|
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,walk
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|