OFFSET
1,2
COMMENTS
Table starts
.....0.......24.........40...........144.............344...............1000
....24......104........544..........2568...........12656..............62112
....40......544.......4056.........33768..........273928............2237680
...144.....2568......33768........458320.........6315600...........86568360
...344....12656.....273928.......6315600.......145680504.........3364965408
..1000....62112....2237680......86568360......3364965408.......130602553784
..2688...304584...18242392....1188841336.....77691779712......5075186680192
..7528..1494072..148782184...16318664224...1793861476320....197100662468008
.20648..7329384.1213377952..224021622784..41418279791200...7655862674452520
.57040.35956128.9895860408.3075298469624.956315991414968.297368484380040776
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..219
EXAMPLE
Some solutions for 4X3
..1..1..0....0..1..0....1..0..1....0..0..0....1..0..0....0..0..1....0..0..1
..1..1..1....0..1..0....1..1..1....1..0..0....1..0..1....0..0..0....0..1..1
..0..1..0....1..1..1....1..1..0....1..0..0....1..1..1....0..0..1....0..0..0
..0..1..0....0..1..1....1..0..0....0..0..0....1..1..0....0..1..1....1..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 01 2011
STATUS
approved