A234391 Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally or diagonally downwards

585790562, 312048302829, 153633836957604, 74663552616253924, 35875918677964045614, 17195334462942102194231, 8228051529829721729550790, 3935465499122487418083720931, 1881860502330838651974878479518

Offset

1,1

Comments

Column 3 of A234393

Links

R. H. Hardin, Table of n, a(n) for n = 1..104

Example

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

Crossrefs

Sequence in context: A303268 A186961 A032755 * A297448 A057535 A134858

Adjacent sequences: A234388 A234389 A234390 * A234392 A234393 A234394

Keyword

nonn

Author

R. H. Hardin, Dec 25 2013

Status

approved