|
| |
|
|
A146231
|
|
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111 pattern in any orientation.
|
|
0
|
|
|
|
1, 1, 1, 5, 17, 35, 163, 959, 6943, 61513, 740733, 9820359, 193942865, 4360418313, 137513801459
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
| |
| |
|
|
