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A147203
Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1100-0101-0111 pattern in any orientation.
0
1, 1, 1, 1, 1, 1, 1, 1, 17, 17, 49, 49, 205, 205, 2349, 2349, 61265, 61265, 1411269, 1411269, 32593981, 32593981
OFFSET
1,9
EXAMPLE
Maximal 9 X 9 example
.0.0.1.1.0.1.1.0.0
.0.0.0.1.0.1.0.0.0
.0.1.1.1.0.1.1.1.0
.0.1.0.0.0.0.0.1.0
.0.0.0.0.0.0.0.0.0
.0.1.0.0.0.0.0.1.0
.0.1.1.1.0.1.1.1.0
.0.0.0.1.0.1.0.0.0
.0.0.1.1.0.1.1.0.0
CROSSREFS
Sequence in context: A146873 A146793 A146801 * A146777 A147053 A146857
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved