OFFSET
1,2
LINKS
EXAMPLE
Configurations for n=2 (4x4 board) (o = counter):
.
oo.. (2 orientations)
o.o.
.o.o
..oo
.
.o.o (2 orientations)
oo..
..oo
o.o.
.
oo.. (4 orientations)
o..o
..oo
.oo.
.
oo.. (4 orientations)
..oo
oo..
..oo
.
oo.. (4 orientations)
..oo
..oo
oo..
.
oo.. (8 orientations)
..oo
o..o
.oo.
.
o.o. (4 orientations)
.o.o
.o.o
o.o.
.
o.o. (4 orientations)
.o.o
o..o
.oo.
.
.oo. (1 orientation)
o..o
o..o
.oo.
CROSSREFS
KEYWORD
hard,nonn
AUTHOR
Joseph Myers, Dec 11 2012
STATUS
approved