A207514 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 1 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 72, 81, 13, 18, 169, 166, 166, 169, 18, 25, 324, 360, 438, 360, 324, 25, 34, 625, 660, 1042, 1042, 660, 625, 34, 46, 1156, 1292, 1992, 2638, 1992, 1292, 1156, 46, 62, 2116, 2400, 4168, 5334, 5334, 4168, 2400, 2116, 62, 83, 3844

Offset: 1

Author

R. H. Hardin Feb 18 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4....6....9....13....18.....25.....34.....46.....62......83.....111

..4...16...36...81...169...324....625...1156...2116...3844....6889...12321

..6...36...72..166...360...660...1292...2400...4396...8096...14580...26346

..9...81..166..438..1042..1992...4168...8174..15881..30801...58335..111083

.13..169..360.1042..2638..5334..11465..23663..47894..96640..191362..379376

.18..324..660.1992..5334.10340..22960..46826..94601.192192..375592..746568

.25..625.1292.4168.11465.22960..50322.105370.214519.434467..859485.1700263

.34.1156.2400.8174.23663.46826.105370.221672.455400.933158.1848347.3679944

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..1151

Crossrefs

Column 1 is A171861(n+1)

Column 2 is A207025