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A147275
Number of n X n binary arrays with all ones connected only in a 1000-1100-0111-0001 pattern in any orientation.
0
1, 1, 1, 9, 33, 137, 1037, 14193, 449857, 13397625, 549367243, 35252947325, 3964442387077
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.1.1.0.0.1.1.0.0
.0.1.0.0.0.1.1.0
.0.1.1.0.0.0.1.0
.0.0.1.1.0.0.1.1
.1.1.0.0.1.0.0.0
.0.1.0.0.1.1.0.0
.0.1.1.0.0.1.1.1
.0.0.1.1.0.0.0.1
CROSSREFS
Sequence in context: A147154 A257284 A257744 * A140413 A097804 A146136
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved