|
|
A146065
|
|
Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 5-point zee 1,1 2,1 2,2 2,3 3,3 in any orientation.
|
|
0
|
|
|
1, 1, 1, 1, 1, 1, 5, 5, 17, 17, 53, 53, 497, 497, 10289, 10289, 196357, 196357, 5677027, 5677027, 310742317, 310742317, 27512226687, 27512226687, 3369038880519, 3369038880519, 646981592661815, 646981592661815
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,7
|
|
LINKS
|
|
|
EXAMPLE
|
Maximal 8 X 8 example
.0.0.1.0.0.1.0.0
.1.1.1.0.0.1.1.1
.1.0.0.0.0.0.0.1
.0.0.0.0.0.0.0.0
.0.0.0.0.0.0.0.0
.1.0.0.0.0.0.0.1
.1.1.1.0.0.1.1.1
.0.0.1.0.0.1.0.0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|