A232340 Number of 6Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal

1, 288, 5338, 16338, 312276, 1047700, 20052758, 71916112, 1303776080, 4965633966, 85069249698, 342465661280, 5558842468148, 23543239967730, 363597929464136, 1613453348902866, 23803367852101370, 110263048814908764

Offset

1,2

Comments

Row 6 of A232335

Links

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

R. H. Hardin, Empirical recurrence of order 80

Formula

Empirical recurrence of order 80 (see link above)

Example

Some solutions for n=5
..0..1..0..2..0....0..1..0..1..2....0..1..2..1..0....0..1..2..1..0
..2..1..0..1..2....2..1..0..1..2....0..1..0..2..0....0..1..2..1..0
..2..1..2..1..2....0..1..2..1..0....2..1..0..1..2....0..1..2..1..0
..0..1..2..1..0....2..1..2..1..0....2..1..2..1..0....0..1..2..1..2
..2..1..2..1..2....0..1..2..1..2....0..1..0..2..0....2..1..2..1..2
..0..1..2..1..2....0..1..0..1..0....2..1..0..1..2....0..1..2..1..0

Crossrefs

Sequence in context: A182026 A229506 A332429 * A290028 A330817 A299860

Adjacent sequences: A232337 A232338 A232339 * A232341 A232342 A232343

Keyword

nonn

Author

R. H. Hardin, Nov 22 2013

Status

approved