|
Search: id:A147236
|
|
|
| A147236 |
|
Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1101-0111-0001 pattern in any orientation. |
|
+0
1
|
|
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 7, 7, 19, 19, 49, 49, 195, 195, 1111, 1111
(list; graph; listen)
|
|
|
OFFSET
|
1,11
|
|
|
EXAMPLE
|
Maximal 11 X 11 example
.0.0.1.1.1.0.1.1.1.0.0
.0.0.0.1.0.0.0.1.0.0.0
.1.0.0.1.1.0.1.1.0.0.1
.1.1.1.0.1.0.1.0.1.1.1
.1.0.1.1.0.0.0.1.1.0.1
.0.0.0.0.0.0.0.0.0.0.0
.1.0.1.1.0.0.0.1.1.0.1
.1.1.1.0.1.0.1.0.1.1.1
.1.0.0.1.1.0.1.1.0.0.1
.0.0.0.1.0.0.0.1.0.0.0
.0.0.1.1.1.0.1.1.1.0.0
|
|
CROSSREFS
|
Sequence in context: A146687 A146655 A146812 this_sequence A146599 A107222 A050613
Adjacent sequences: A147233 A147234 A147235 this_sequence A147237 A147238 A147239
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhhardin(AT)att.net), Nov 04 2008
|
|
|
Search completed in 0.002 seconds
|
