OFFSET
1,1
COMMENTS
Table starts
...7...11....20.....34.......54.........81..........116............160
..11...16....36.....73......134........225..........354............529
..20...36...130....382......924.......1884.........3463...........5800
..34...73...382...1918.....7671......22452........57488.........126978
..54..134...924...7671....56723.....288744......1201502........4136338
..81..225..1884..22452...288744....2663589.....19694227......116690636
.116..354..3463..57488..1201502...19694227....262752720.....2770530466
.160..529..5800.126978..4136338..116690636...2770530466....52431215293
.214..758..9065.248290.11927710..572683182..24162848938...815858815795
.279.1049.13397.439534.29250767.2305864084.172608985173.10481797492543
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..199
EXAMPLE
Some solutions for 3X3
..0..1..1....0..1..1....0..0..1....0..1..1....0..1..1....0..0..1....0..0..0
..1..0..0....1..0..1....0..1..0....1..1..1....1..0..1....0..1..0....0..0..0
..1..1..1....1..1..0....0..1..1....1..1..1....1..0..1....1..0..1....0..0..0
...
...2..2.......2..3.......1..2.......3..4.......2..3.......1..2.......0..0...
...3..2.......3..2.......2..3.......4..4.......2..2.......2..2.......0..0...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 09 2011
STATUS
approved