login
A146594
Number of n X n binary arrays with all ones connected only in a 1000-1000-1111 pattern in any orientation.
0
1, 1, 1, 17, 77, 549, 6061, 126381, 3867721, 164716773, 10591661407, 1060530627501
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.1.1.1.1.0.1.1.1
.1.0.0.0.0.0.0.1
.1.0.0.0.0.0.0.1
.0.0.0.0.0.1.0.1
.1.0.0.0.0.1.0.0
.1.0.1.1.1.1.0.1
.1.0.0.0.0.0.0.1
.1.1.1.0.1.1.1.1
CROSSREFS
Sequence in context: A296113 A231779 A063494 * A202138 A357740 A124898
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved