|
|
A145252
|
|
1/8 of the number of 8-colorings of an n X n array symmetric about both diagonal and antidiagonal.
|
|
0
|
|
|
1, 7, 343, 14749, 4439449, 1172648743, 2168231331049, 3518160769178167, 39959916168271359799, 398295912044286028090213, 27789833914848401703684111343
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|