OFFSET
1,5
COMMENTS
Table starts
...0.......1..........1.............3.................5.................11
...1.......5.........26...........120...............576...............2768
...1......26........224..........2530.............25496.............269496
...3.....120.......2530.........58458...........1317540...........30132444
...5.....576......25496.......1317540..........64354744.........3228500154
..11....2768.....269496......30132444........3228500154.......353403366772
..21...13256....2792166.....684657326......160107914496.....38323943289566
..43...63544...29168100...15594228288.....7976049592892...4170998760222200
..85..304608..303674928..354894362166...396657534279472.453352604882802786
.171.1460072.3165976954.8078976180614.19739291980979494
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..111
EXAMPLE
Some solutions for 5X4 with a(1,1)=0
..0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..1....0..0..0..1
..0..2..2..0....0..2..2..2....0..2..0..1....0..1..1..1....0..2..0..1
..1..2..0..2....1..1..1..1....0..2..1..1....0..2..2..2....0..2..2..2
..1..2..0..2....0..0..0..0....0..0..2..2....0..1..1..1....0..1..0..0
..0..0..0..2....1..1..2..2....1..1..1..2....0..2..2..1....0..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 31 2011
STATUS
approved