|
|
A068296
|
|
1/7 the number of colorings of an n X n octagonal array with 7 colors.
|
|
1
|
|
|
1, 120, 161280, 2451486720, 421421199390720, 819296954885530030080, 18013654371239090908333148160, 4479149596637688119857975807616194560, 12595676735919821000208123310178819903753287680, 400570738126155220679966449710339235598075113573822617600
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|