A184686 T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock singular.

10, 28, 28, 76, 128, 76, 208, 544, 544, 208, 568, 2384, 3360, 2384, 568, 1552, 10384, 21968, 21968, 10384, 1552, 4240, 45392, 140816, 221968, 140816, 45392, 4240, 11584, 198352, 909520, 2171152, 2171152, 909520, 198352, 11584, 31648, 867152, 5858896

Offset: 1

Author

R. H. Hardin Jan 19 2011

Keywords

• nonn
• tabl

Comments

Table starts

....10.......28.........76..........208............568.............1552

....28......128........544.........2384..........10384............45392

....76......544.......3360........21968.........140816...........909520

...208.....2384......21968.......221968........2171152.........21547024

...568....10384.....140816......2171152.......31817360........476660624

..1552....45392.....909520.....21547024......476660624......10876933264

..4240...198352....5858896....212829840.....7079094288.....245133874960

.11584...867152...37779664...2107074576...105530924944....5556396815504

.31648..3791056..243525712..20846869136..1570852959248..125663816659728

.86464.16575056.1569965008.206331811088.23397537190544.2845061488472976

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..480

Crossrefs

Column 1 is A026150(n+2)=2*A052945(n+1)