A224207 Number of 5Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing

1024, 160000, 4357084, 54177872, 451319098, 2981774784, 17178450136, 91585310015, 466549088803, 2294426837986, 10864811370660, 49206477503159, 211954893113813, 865842155983471, 3352909875833504, 12323194613924281

Offset

1,1

Comments

Row 5 of A224204

Links

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

R. H. Hardin, Empirical polynomial of degree 30

Formula

Empirical polynomial of degree 30 (see link above)

Example

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

Crossrefs

Sequence in context: A174155 A269205 A224284 * A017033 A017117 A269293

Adjacent sequences: A224204 A224205 A224206 * A224208 A224209 A224210

Keyword

nonn

Author

R. H. Hardin Apr 01 2013

Status

approved