A205255 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

16, 40, 40, 112, 168, 112, 328, 752, 752, 328, 976, 3416, 5212, 3416, 976, 2920, 15568, 36304, 36304, 15568, 2920, 8752, 71000, 253072, 387328, 253072, 71000, 8752, 26248, 323856, 1764364, 4136296, 4136296, 1764364, 323856, 26248, 78736, 1477272

Offset: 1

Author

R. H. Hardin Jan 24 2012

Keywords

• nonn
• tabl

Comments

Table starts

....16......40......112........328..........976...........2920.............8752

....40.....168......752.......3416........15568..........71000...........323856

...112.....752.....5212......36304.......253072........1764364.........12301024

...328....3416....36304.....387328......4136296.......44183032........471988176

...976...15568...253072....4136296.....67731268.....1109832184......18189909484

..2920...71000..1764364...44183032...1109832184....27913330476.....702420750928

..8752..323856.12301024..471988176..18189909484...702420750928...27149753088796

.26248.1477272.85762192.5042151648.298154846440.17679917387408.1049837466171440

Examples

			Some solutions for n=4 k=3
..0..1..1..0....1..0..0..1....1..1..0..0....0..0..1..1....1..1..1..1
..0..0..0..0....0..0..1..1....1..0..0..1....1..0..0..0....0..0..1..0
..0..1..1..1....1..0..1..0....0..0..1..1....0..0..1..1....0..1..1..1
..1..1..0..1....0..0..0..0....1..0..0..1....0..1..1..0....1..1..0..1
..0..1..1..1....0..1..0..1....1..1..0..1....1..1..0..0....0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..420