A229377 Number of nX5 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.

164, 2138, 48490, 956866, 20014278, 407900408, 8454015792, 173331549156, 3583467036398, 73637531304764, 1520470917860158, 31281412038561736, 645413766480453102, 13287410455121938834, 274025926174436180190

Offset: 1

Author

R. H. Hardin Sep 21 2013

Keywords

• nonn

Comments

Column 5 of A229380

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 64

Formula

Empirical recurrence of order 64 (see link above)