A207785 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 98, 81, 13, 18, 169, 257, 253, 169, 19, 25, 324, 611, 791, 621, 361, 28, 34, 625, 1326, 2173, 2200, 1575, 784, 41, 46, 1156, 2815, 5241, 6766, 6418, 4000, 1681, 60, 62, 2116, 5718, 12567, 17763, 22322, 19041, 10057, 3600, 88, 83

Offset: 1

Author

R. H. Hardin Feb 20 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4.....6.....9.....13.....18......25......34.......46.......62........83

..4...16....36....81....169....324.....625....1156.....2116.....3844......6889

..6...36....98...257....611...1326....2815....5718....11362....22164.....42507

..9...81...253...791...2173...5241...12567...28101....61397...131083....272789

.13..169...621..2200...6766..17763...46199..110732...257118...582114...1274558

.19..361..1575..6418..22322..65094..185613..486006..1224264..2997835...7098270

.28..784..4000.19041..75557.246087..786907.2283773..6379507.17308075..45325727

.41.1681.10057.55101.246840.887406.3121285.9855231.29800935.87179997.244806537

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..511

Crossrefs

Column 1 is A000930(n+3)

Column 2 is A207170

Column 3 is A203084(n-2)

Row 1 is A171861(n+1)

Row 2 is A207025

Row 3 is A202371(n-2)