A184386 T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing three of each value

140, 545, 545, 2174, 1494, 2174, 9113, 4281, 4281, 9113, 43295, 13616, 8936, 13616, 43295, 212747, 55386, 21473, 21473, 55386, 212747, 1096781, 242370, 73139, 38642, 73139, 242370, 1096781, 6045233, 1165496, 280347, 104312, 104312, 280347

Offset

1,1

Comments

Table starts

.......140.......545......2174......9113....43295..212747.1096781.6045233

.......545......1494......4281.....13616....55386..242370.1165496.6248040

......2174......4281......8936.....21473....73139..280347.1245641.6472317

......9113.....13616.....21473.....38642...104312..336236.1348574.6736118

.....43295.....55386.....73139....104312...207470..503298.1633604.7390644

....212747....242370....280347....336236...503298..890982.2168744.8382192

...1096781...1165496...1245641...1348574..1633604.2168744.3651098

...6045233...6248040...6472317...6736118..7390644.8382192

..33958643..34487190..35048783..35668172.37119266

.194694395.195981866.197315495.198726728

Links

R. H. Hardin, Table of n, a(n) for n = 1..97

Example

Some solutions with a(1,1)=0 for 5X4
..0..0..1..0....0..0..2..2....0..1..2..0....0..0..2..1....0..2..2..0
..1..2..2..0....2..1..1..2....2..1..2..2....2..0..1..2....2..1..1..0
..0..2..1..1....2..0..1..0....0..0..1..0....1..2..1..0....0..0..1..2
..0..0..1..0....0..2..0..2....1..2..0..1....0..2..0..1....2..2..0..2
..1..2..2..0....2..1..1..2....2..2..1..2....2..1..0..2....2..1..1..0

Crossrefs

Sequence in context: A010080 A350210 A250801 * A184378 A180294 A330446

Adjacent sequences: A184383 A184384 A184385 * A184387 A184388 A184389

Keyword

nonn,tabl

Author

R. H. Hardin Jan 12 2011

Status

approved