A204318 Number of (n+2)X5 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..3 introduced in row major order.

296570, 24722349, 2434061311, 117341267705, 7934236341512, 567813705120009, 34674287699583159, 2275598380196627853, 151548735164120425259, 9747407441652739008940, 636537286434256170716385

Offset

1,1

Comments

Column 3 of A204320

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A303357 A251387 A164946 * A204334 A048906 A251334

Adjacent sequences: A204315 A204316 A204317 * A204319 A204320 A204321

Keyword

nonn

Author

R. H. Hardin, Jan 14 2012

Status

approved