login
A146461
Number of n X n binary arrays with all ones connected only in a 1100-0111-0100 pattern in any orientation.
0
1, 1, 1, 17, 49, 361, 6061, 172273, 5274005, 274545571, 26127520797, 3923980431021, 871070091426765
OFFSET
1,4
EXAMPLE
Maximal 8 X 8 example
.1.0.0.0.0.0.1.0
.1.1.1.0.1.1.1.0
.0.1.0.0.0.0.1.1
.0.1.0.0.1.1.0.0
.0.0.1.1.1.0.1.0
.0.1.0.0.1.0.1.0
.0.1.1.1.0.1.1.1
.1.1.0.0.0.0.0.1
CROSSREFS
Sequence in context: A146698 A146706 A120612 * A098329 A160076 A003124
KEYWORD
nonn
AUTHOR
STATUS
approved