A184497 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum greater than 4

31, 165, 165, 792, 1983, 792, 3971, 20514, 20514, 3971, 19593, 225739, 421879, 225739, 19593, 97312, 2429833, 9573698, 9573698, 2429833, 97312, 482071, 26384550, 209361859, 460055427, 209361859, 26384550, 482071, 2390621

Offset

1,1

Comments

Table starts

.......31..........165..............792................3971

......165.........1983............20514..............225739

......792........20514...........421879.............9573698

.....3971.......225739..........9573698...........460055427

....19593......2429833........209361859.........21093149945

....97312.....26384550.......4649028105........986037480116

...482071....285552669.....102612963762......45743024168833

..2390621...3094453927....2270452765634....2128664486092091

.11850280..33517063586...50187203345248...98934614320637956

.58751643.363104617411.1109807953423781.4600534960538274519

Links

R. H. Hardin, Table of n, a(n) for n = 1..220

Example

Some solutions for 4X3
..2..2..0....1..1..2....1..1..1....2..2..0....2..0..2....1..2..1....0..2..2
..0..2..1....1..2..0....1..2..2....2..1..2....1..2..2....2..0..2....2..1..1
..2..2..1....2..2..1....1..2..2....1..2..0....1..1..2....2..1..2....2..2..2
..1..2..0....0..2..0....2..1..0....0..2..1....2..1..1....0..2..1....2..1..1

Crossrefs

Sequence in context: A268258 A142306 A296114 * A184489 A140540 A183877

Adjacent sequences: A184494 A184495 A184496 * A184498 A184499 A184500

Keyword

nonn,tabl

Author

R. H. Hardin Jan 15 2011

Status

approved