A205410 Number of (n+2)X5 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..2 introduced in row major order.

33322, 549414, 10331386, 151598017, 2553087985, 45661264026, 735422130329, 12286397087182, 212128668698876, 3518160933737460, 58829708185415817, 999828369246325845, 16744112843227770105, 280613932821800402695

Offset: 1

Author

R. H. Hardin Jan 26 2012

Keywords

• nonn

Comments

Column 3 of A205415

Examples

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

Links

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