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A146783
Number of n X n binary arrays with all ones connected only in a 0100-1100-1111 pattern in any orientation.
0
1, 1, 1, 17, 57, 369, 5039, 105411, 2937697, 116344821, 7465413345, 762264403505, 114422662087491
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.1.1.1.1.0.0.1.1
.1.1.0.0.0.1.1.1
.0.1.0.0.1.0.0.1
.0.0.0.0.1.0.0.1
.1.0.1.1.1.0.0.0
.1.0.0.1.1.0.1.0
.1.1.1.0.0.0.1.1
.1.1.0.0.1.1.1.1
CROSSREFS
Sequence in context: A147162 A146690 A146437 * A146570 A147209 A147239
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved