|
Search: id:A146572
|
|
|
| A146572 |
|
Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 0100-0100-1111 pattern in any orientation. |
|
+0
1
|
|
| 1, 1, 1, 1, 1, 1, 1, 1, 17, 17, 57, 57, 369, 369, 6075, 6075, 152201, 152201, 4520107, 4520107, 199476793, 199476793, 15394540581
(list; graph; listen)
|
|
|
OFFSET
|
1,9
|
|
|
EXAMPLE
|
Maximal 9 X 9 example
.0.0.0.1.0.1.0.0.0
.0.0.0.1.0.1.0.0.0
.0.1.1.1.0.1.1.1.0
.0.0.0.1.0.1.0.0.0
.0.0.0.0.0.0.0.0.0
.0.0.0.1.0.1.0.0.0
.0.1.1.1.0.1.1.1.0
.0.0.0.1.0.1.0.0.0
.0.0.0.1.0.1.0.0.0
|
|
CROSSREFS
|
Sequence in context: A146692 A146439 A146785 this_sequence A147211 A147241 A146580
Adjacent sequences: A146569 A146570 A146571 this_sequence A146573 A146574 A146575
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhhardin(AT)att.net), Nov 04 2008
|
|
|
Search completed in 0.002 seconds
|
