A233484 Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or vertically

8254896, 1328621536, 208066125583, 32519299606118, 5070020645309648, 790268803855249807, 123152447408851785342, 19191100654338179315407, 2990528559024374872097052, 466009565463506152675878521

Offset

1,1

Comments

Column 2 of A233488

Links

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

Example

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

Crossrefs

Sequence in context: A116304 A116337 A234049 * A363792 A234383 A192630

Adjacent sequences: A233481 A233482 A233483 * A233485 A233486 A233487

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved