OFFSET
1,2
COMMENTS
Table starts
.........1.............8...............64................512
.........8...........162.............3256..............65640
........64..........3256...........163208............8231592
.......512.........65640..........8231592.........1042063656
......4096.......1321860........414246824.......131467169720
.....32768......26630220......20864057480.....16607782066704
....262144.....536415300....1050517114472...2096961683069192
...2097152...10805642100...52900274426120.264820293988996048
..16777216..217666494900.2663752907479720
.134217728.4384657426500
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..70
EXAMPLE
Some solutions with upper left block zero for 4X3
..0..0..0....0..0..1....0..0..1....0..0..1....0..0..0....0..0..1....0..0..1
..0..0..2....0..0..0....0..0..2....0..0..1....0..0..1....0..0..0....0..0..1
..1..0..1....0..2..1....1..2..0....1..1..0....2..1..1....2..1..0....1..1..2
..2..1..1....1..2..2....1..1..0....0..1..1....0..2..0....0..2..2....2..0..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved