A204346 Number of (n+2)X5 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order

30378276, 22275534255, 16256855591536, 11860456910608960, 8653701637919899728, 6313899655904879255175, 4606746353051274080442020, 3361172935168170742873724992, 2452378030687848539033613343420

Offset

1,1

Comments

Column 3 of A204351

Links

R. H. Hardin, Table of n, a(n) for n = 1..34

Example

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

Crossrefs

Sequence in context: A107619 A320723 A187431 * A263644 A283619 A156420

Adjacent sequences: A204343 A204344 A204345 * A204347 A204348 A204349

Keyword

nonn

Author

R. H. Hardin Jan 14 2012

Status

approved