A204151 Number of (n+2)X8 0..2 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order

4128422, 29610374, 152500334, 826613438, 4563772922, 25723818038, 138134688554, 761533538294, 4141845409538, 22819902563342, 123961103374538, 678268376581502, 3687728534652242, 20228210090452262, 110260687991850938

Offset

1,1

Comments

Column 6 of A204153

Links

R. H. Hardin, Table of n, a(n) for n = 1..48

Example

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

Crossrefs

Sequence in context: A346332 A333376 A230755 * A373528 A205245 A366507

Adjacent sequences: A204148 A204149 A204150 * A204152 A204153 A204154

Keyword

nonn

Author

R. H. Hardin Jan 11 2012

Status

approved