A208555 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.

2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 90, 81, 12, 26, 256, 330, 225, 144, 16, 42, 676, 1008, 1089, 420, 256, 20, 68, 1764, 3354, 3969, 2508, 784, 400, 25, 110, 4624, 10710, 16641, 10080, 5776, 1260, 625, 30, 178, 12100, 34884, 65025, 50052, 25600, 11020

Offset: 1

Author

R. H. Hardin Feb 28 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...90...330...1008...3354...10710....34884....112530.....364722

..9..81..225..1089...3969..16641...65025...263169...1046529....4198401

.12.144..420..2508..10080..50052..221340..1042416...4742628...21989868

.16.256..784..5776..25600.150544..753424..4129024..21492496..115175824

.20.400.1260.11020..52000.351140.1913940.11836400..67894220..407225740

.25.625.2025.21025.105625.819025.4862025.33930625.214476025.1439823025

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..2132

Crossrefs

Column 1 is A002620(n+2)

Column 2 is A030179(n+2)

Column 3 is A207363

Row 1 is A006355(n+2)

Row 2 is A206981

Row 3 is A207454