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A147415
Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1001-1111-0110 pattern in any orientation.
0
1, 1, 1, 1, 1, 1, 1, 6, 9, 32, 25, 194, 81, 1875, 559, 19586
OFFSET
1,8
EXAMPLE
Maximal 8 X 8 example
.0.0.1.0.0.1.0.0
.0.0.1.1.1.1.0.0
.1.1.0.1.1.0.1.1
.0.1.1.0.0.1.1.0
.0.1.1.0.0.1.1.0
.1.1.0.1.1.0.1.1
.0.0.1.1.1.1.0.0
.0.0.1.0.0.1.0.0
CROSSREFS
Sequence in context: A180325 A192425 A219687 * A217048 A105866 A267690
KEYWORD
nonn
AUTHOR
STATUS
approved