A234192 Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards

8978872, 1577067369, 272785548513, 47114152181148, 8128987583933281, 1402354682135036305, 241907393209732474040, 41728691066349914499057, 7198106124765939948074277, 1241655935620049816080983368

Offset

1,1

Comments

Column 2 of A234196

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..1..0....0..0..1..0....0..0..0..0....0..0..0..0
..1..0..0..0....1..1..2..2....2..1..3..0....0..0..3..0....3..1..0..2
..0..3..0..1....3..0..1..1....2..0..0..2....3..2..3..0....0..1..0..0

Crossrefs

Sequence in context: A233492 A251157 A337963 * A162021 A157815 A157821

Adjacent sequences: A234189 A234190 A234191 * A234193 A234194 A234195

Keyword

nonn

Author

R. H. Hardin, Dec 21 2013

Status

approved