A207519 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 10, 14, 81, 98, 100, 16, 21, 196, 271, 358, 256, 26, 31, 441, 834, 1307, 1152, 676, 42, 46, 961, 2307, 5458, 5369, 3910, 1764, 68, 68, 2116, 6115, 19909, 29622, 23645, 12994, 4624, 110, 100, 4624, 16544, 68807, 137719, 174224

Offset: 1

Author

R. H. Hardin Feb 18 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4.....6......9......14.......21........31.........46..........68

..4...16....36.....81.....196......441.......961.......2116........4624

..6...36....98....271.....834.....2307......6115......16544.......44250

.10..100...358...1307....5458....19909.....68807.....243954......851870

.16..256..1152...5369...29622...137719....600283....2713480....12034046

.26..676..3910..23645..174224..1048423...5849409...34086388...194127326

.42.1764.12994.101233..991184..7666319..54373655..406281454..2956097240

.68.4624.43596.439063.5723716.57113109.516879019.4964342828.46263548214

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..337

Crossrefs

Column 1 is A006355(n+2)

Column 2 is A206981

Column 3 is A207462

Column 4 is A207463

Row 1 is A038718(n+2)

Row 2 is A207069

Row 3 is A207392