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A147392
Number of n X n binary arrays with all ones connected only in a 1000-1000-1111-0001-0001 pattern in any orientation.
0
1, 1, 1, 1, 9, 25, 65, 305, 2297, 32289, 404565, 5435093, 101023199, 2823418681, 117113399963
OFFSET
1,5
EXAMPLE
Maximal 8 X 8 example
.0.0.1.1.1.0.0.0
.0.0.1.0.0.0.0.0
.0.0.1.0.0.0.0.0
.1.1.1.0.0.0.0.1
.0.0.0.0.0.0.0.1
.0.0.0.0.1.1.1.1
.0.0.0.0.1.0.0.0
.0.0.0.0.1.0.0.0
CROSSREFS
Sequence in context: A077118 A242116 A209530 * A147318 A146589 A146866
KEYWORD
nonn
AUTHOR
STATUS
approved