|
|
A145945
|
|
Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected in a 3X2 elbow 1,1 1,2 1,3 2,3 in any orientation.
|
|
0
|
|
|
1, 1, 1, 1, 1, 1, 17, 17, 101, 101, 1439, 1439, 45325, 45325, 2541179, 2541179, 249765423, 249765423, 48546882545, 48546882545, 17503645590565, 17503645590565
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,7
|
|
LINKS
|
|
|
EXAMPLE
|
Maximal 8 X 8 example
.0.0.0.0.0.0.0.0
.1.0.0.0.0.0.0.1
.1.1.1.0.0.1.1.1
.0.0.0.0.0.0.0.0
.0.0.0.0.0.0.0.0
.1.1.1.0.0.1.1.1
.1.0.0.0.0.0.0.1
.0.0.0.0.0.0.0.0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|