A208350 Number of nX5 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).

51, 7780, 153237, 4773885, 191586797, 8045978096, 340596199800, 14513602070899, 621231491393354, 26619820042892506, 1141266433540198765, 48945495491297801080, 2099487944721769270814, 90063058254133100176716

Offset: 1

Author

R. H. Hardin Feb 25 2012

Keywords

• nonn

Comments

Column 5 of A208353

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..29