A222922 Number of nX4 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order.

12, 3183, 1396408, 700411548, 352790675074, 177991922235005, 89795579488204082, 45302597340251356553, 22855446389732416394860, 11530725901161434778153848, 5817327820706155068068660004

Offset: 1

Author

R. H. Hardin Mar 09 2013

Keywords

• nonn

Comments

Column 4 of A222924

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..87