OFFSET
1,1
COMMENTS
Table starts
........49246........1352770........35802874.......742295518........17984702194
......1352770......119805310.....10047874534....564143008386.....42151760266070
.....35802874....10047874534...2738040689182.452748537865658.113762289821953494
....742295518...564143008386.452748537865658
..17984702194.42151760266070
.426536161750
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..24
EXAMPLE
Some solutions for 4X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..2....0..0..0..2....3..0..0..1....2..0..0..0....3..0..0..3
..3..0..0..0....1..0..0..1....0..0..3..3....0..0..1..0....0..0..0..1
..1..1..1..2....1..0..1..0....2..0..3..0....1..0..1..1....1..1..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 19 2011
STATUS
approved