A207315 Number of nX6 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal

622, 386884, 174545777, 76655305645, 32960886054362, 14121763303437256, 6040603302358685420, 2582933724901198649918, 1104307821349717818359464, 472120223465963151312369423, 201841505612036976090187423377

Offset

1,1

Comments

Column 6 of A207317

Links

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

Example

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

Crossrefs

Sequence in context: A268025 A207554 A207548 * A206698 A268018 A321675

Adjacent sequences: A207312 A207313 A207314 * A207316 A207317 A207318

Keyword

nonn

Author

R. H. Hardin Feb 16 2012

Status

approved