A204975 Number of nX5 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.

30, 5400, 226908, 11815256, 594430765, 30057359681, 1519010368414, 76757855124562, 3878731054806384, 196001179244804717, 9904372451888881080, 500490203444826245265, 25290888836528806246336, 1278005232465153039958786

Offset: 1

Author

R. H. Hardin Jan 21 2012

Keywords

• nonn

Comments

Column 5 of A204978

Examples

			Some solutions for n=5
..0..1..2..0..1....0..1..0..2..1....0..0..1..2..0....0..1..2..0..1
..2..1..2..2..0....2..1..1..2..0....1..1..2..0..2....1..2..1..0..1
..0..0..1..2..0....1..0..1..0..1....2..0..2..1..0....1..2..0..2..0
..0..1..0..0..1....1..2..2..0..1....0..1..0..1..0....0..1..1..0..0
..2..2..1..2..1....2..1..2..2..0....1..0..0..2..2....2..0..2..1..1
		

Links

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