A222924 T(n,k)=Number of nXk 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order.

1, 2, 2, 4, 15, 4, 12, 174, 174, 12, 41, 3183, 13571, 3183, 41, 158, 68076, 1396408, 1396408, 68076, 158, 663, 1543538, 149478882, 700411548, 149478882, 1543538, 663, 2944, 35663142, 16132176644, 352790675074, 352790675074, 16132176644

Offset: 1

Author

R. H. Hardin Mar 09 2013

Keywords

• nonn
• tabl

Comments

Table starts

.....1...........2...............4................12..................41

.....2..........15.............174..............3183...............68076

.....4.........174...........13571...........1396408...........149478882

....12........3183.........1396408.........700411548........352790675074

....41.......68076.......149478882......352790675074.....829048065675262

...158.....1543538.....16132176644...177991922235005.1950399182366908036

...663....35663142...1743046774975.89795579488204082

..2944...829049736.188375987615301

.13537.19310392822

.63551

Examples

			Some solutions for n=3 k=4
..0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0
..1..2..0..1....2..0..3..2....2..1..3..0....2..1..2..2....2..2..0..1
..2..2..3..3....1..3..4..0....3..1..3..3....0..2..2..3....0..3..4..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..60