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A146847
Number of n X n binary arrays with all ones connected only in a 1100-1111-0001 pattern in any orientation.
0
1, 1, 1, 17, 53, 349, 3775, 72823, 2211763, 82363675, 4738620129, 444556126937, 63087971915051
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.0.0.0.0.1.1.0.0
.0.0.0.0.1.1.1.1
.0.0.0.0.0.0.0.1
.0.0.0.0.0.1.1.0
.1.1.0.1.1.0.1.0
.0.1.0.1.1.0.1.1
.0.1.1.0.1.0.1.1
.0.1.1.0.1.1.0.0
CROSSREFS
Sequence in context: A147178 A146642 A146610 * A146714 A146397 A146405
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved