OFFSET
0,2
EXAMPLE
Example: for n=3 the a(3)=5 solutions are
. . . . . . K . K K . K . K .
. . . . K . . . . . K . K . K
. . . . . . K . K K . K . K .
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
R. H. Hardin, Sep 04 2008
STATUS
approved