A207774 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically.

2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 84, 81, 14, 26, 256, 292, 192, 196, 21, 42, 676, 912, 828, 450, 441, 31, 68, 1764, 2812, 3130, 2514, 972, 961, 46, 110, 4624, 8928, 11230, 11950, 7164, 2040, 2116, 68, 178, 12100, 28152, 43260, 49122, 43264, 20104

Offset: 1

Author

R. H. Hardin Feb 20 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4....6....10.....16......26.......42........68........110.........178

..4...16...36...100....256.....676.....1764......4624......12100.......31684

..6...36...84...292....912....2812.....8928.....28152......87972......277292

..9...81..192...828...3130...11230....43260....163710.....604340.....2295512

.14..196..450..2514..11950...49122...240346...1128862....4877154....23327018

.21..441..972..7164..43264..195160..1246206...7381202...35627804...220514498

.31..961.2040.20104.157472..759482..6513576..49975640..259077468..2150453548

.46.2116.4278.57458.597090.3023026.35632160.364308938.1972417684.22562076620

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..513

Crossrefs

Column 1 is A038718(n+2)

Column 2 is A207069

Row 1 is A006355(n+2)

Row 2 is A206981

Row 3 is A207341

Row 4 is A207342