A185777 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

81, 558, 558, 3844, 7074, 3844, 26784, 89118, 89118, 26784, 186624, 1151346, 2046098, 1151346, 186624, 1296000, 14837270, 48744342, 48744342, 14837270, 1296000, 9000000, 190416934, 1154712762, 2171002788, 1154712762, 190416934

Offset: 1

Author

R. H. Hardin Feb 03 2011

Keywords

• nonn
• tabl

Comments

Table starts

.........81..........558...........3844...........26784..........186624

........558.........7074..........89118.........1151346........14837270

.......3844........89118........2046098........48744342......1154712762

......26784......1151346.......48744342......2171002788.....95851024672

.....186624.....14837270.....1154712762.....95851024672...7861640359954

....1296000....190416934....27239862108...4212755548948.641850855452998

....9000000...2442333998...641595944400.184696487434352

...62568000..31384892214.15156754839024

..434972736.403218559222

.3022785216

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..59