|
| |
|
|
A147064
|
|
Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 01010-11111 pattern in any orientation.
|
|
0
| |
|
|
1, 1, 1, 1, 1, 1, 2, 1, 4, 1, 6, 1, 14, 3, 43, 10, 133, 29, 604, 96, 3118, 333, 17061, 1304, 110347, 7679, 888486, 55914
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,7
|
|
|
EXAMPLE
| Maximal 9 X 9 example
.0.0.0.0.0.0.0.0.0
.0.0.1.1.1.1.1.0.0
.0.1.0.1.0.1.0.1.0
.0.1.1.0.0.0.1.1.0
.0.1.0.0.0.0.0.1.0
.0.1.1.0.0.0.1.1.0
.0.1.0.1.0.1.0.1.0
.0.0.1.1.1.1.1.0.0
.0.0.0.0.0.0.0.0.0
|
|
|
CROSSREFS
| Sequence in context: A147389 A147008 A147365 * A147228 A176729 A074643
Adjacent sequences: A147061 A147062 A147063 * A147065 A147066 A147067
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| R. H. Hardin (rhhardin(AT)att.net), Nov 04 2008
|
| |
|
|
