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A147217
Number of n X n binary arrays with all ones connected only in a 1100-0111-0101 pattern in any orientation.
0
1, 1, 1, 17, 49, 237, 2821, 72631, 1759597, 48580733, 2684705291, 263944603423
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.0.1.0.1.0.0.0.0
.0.1.1.1.0.0.1.1
.1.1.0.0.0.0.1.0
.0.0.0.0.0.1.1.1
.0.0.0.0.0.1.0.0
.0.0.1.1.0.0.1.1
.1.1.1.0.1.1.1.0
.1.0.1.0.1.0.1.0
CROSSREFS
Sequence in context: A146799 A147201 A146775 * A147051 A146855 A146666
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved