A233477 Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally or vertically

432047816, 264110152411, 157745111994988, 94192817031882237, 56144572756093218532, 33464589643594017658068, 19943610614570401668122830, 11885592674748739620208778761, 7083262038757043890993319580932

Offset

1,1

Comments

Column 3 of A233480

Links

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

Example

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

Crossrefs

Sequence in context: A017408 A017528 A283872 * A117631 A022229 A022260

Adjacent sequences: A233474 A233475 A233476 * A233478 A233479 A233480

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved