A208164 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 102, 81, 14, 19, 169, 281, 287, 196, 21, 28, 361, 699, 981, 882, 441, 31, 41, 784, 1799, 2920, 3893, 2491, 961, 46, 60, 1681, 4706, 9039, 14446, 13825, 6759, 2116, 68, 88, 3600, 12161, 28681, 55576, 63031, 46611, 18528

Offset: 1

Author

R. H. Hardin Feb 24 2012

Keywords

• nonn
• tabl

Comments

Table starts

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

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

..6...36...102....281.....699....1799.....4706.....12161......31356.......81206

..9...81...287....981....2920....9039....28681.....89623.....278652......872602

.14..196...882...3893...14446...55576...222487....873641....3397748....13352522

.21..441..2491..13825...63031..297702..1474641...7151473...34264481...166182659

.31..961..6759..46611..258952.1493661..9072707..53874293..315713411..1874906825

.46.2116.18528.159545.1088966.7719181.57903614.424153857.3061342878.22414028568

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..544

Crossrefs

Column 1 is A038718(n+2)

Column 2 is A207069

Column 3 is A207237

Row 1 is A000930(n+3)

Row 2 is A207170

Row 3 is A207961