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A146706
Number of n X n binary arrays with all ones connected only in a 1100-1111-0100 pattern in any orientation.
0
1, 1, 1, 17, 49, 329, 4511, 91215, 2775809, 118081991, 8300875867, 930028727469, 155873672022641
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.0.0.0.0.0.0.1.0
.0.1.0.0.0.0.1.0
.0.1.0.0.0.1.1.1
.1.1.1.0.0.0.1.1
.1.1.0.0.1.1.0.0
.0.0.1.0.1.1.1.0
.1.1.1.1.0.1.0.0
.0.0.1.1.0.1.0.0
CROSSREFS
Sequence in context: A146634 A146831 A146698 * A120612 A146461 A098329
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved