A207885 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 1 0 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 82, 81, 14, 19, 169, 221, 177, 196, 22, 28, 361, 493, 575, 408, 484, 35, 41, 784, 1095, 1360, 1673, 942, 1225, 56, 60, 1681, 2654, 3106, 4387, 4881, 2233, 3136, 90, 88, 3600, 6203, 8652, 10207, 14225, 14825, 5348, 8100, 145, 129

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4....6.....9.....13.....19......28.......41.......60........88.......129

..4...16...36....81....169....361.....784.....1681.....3600......7744.....16641

..6...36...82...221....493...1095....2654.....6203....14182.....33242.....77781

..9...81..177...575...1360...3106....8652....22114....53620....139806....360132

.14..196..408..1673...4387..10207...33976....97989...250976....751786...2196861

.22..484..942..4881..14225..33631..138552...452415..1213630...4316538..14467167

.35.1225.2233.14825..49586.119278..618202..2332602..6535778..28238814.110355600

.56.3136.5348.45411.175747.430317.2857532.12501427.36429646.195734448.894867543

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..578

Crossrefs

Column 1 is A001611(n+2)

Column 2 is A207436

Column 3 is A207483

Row 1 is A000930(n+3)

Row 2 is A207170

Row 3 is A207763