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A147185
Number of n X n binary arrays with all ones connected only in a 11000-01110-00011 pattern in any orientation.
0
1, 1, 1, 1, 13, 61, 329, 2787, 39701, 747265, 18941331, 668354617, 33772020165
OFFSET
1,5
EXAMPLE
Maximal 8 X 8 example
.1.1.0.0.0.0.0.1
.0.1.1.1.0.0.1.1
.0.0.0.1.1.0.1.0
.1.0.0.0.0.1.1.0
.1.1.0.0.0.1.0.0
.0.1.0.1.1.0.0.0
.0.1.1.0.1.1.1.0
.0.0.1.0.0.0.1.1
CROSSREFS
Sequence in context: A231800 A141725 A279762 * A122885 A257216 A135535
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved