A224048 Number of nX6 0..3 arrays with rows and columns unimodal and antidiagonals nondecreasing

610, 59792, 1801402, 28403642, 310514900, 2701569493, 20096076442, 133729094355, 821109158656, 4743773544158, 26052580835518, 136551839375912, 683560425650120, 3267176210453459, 14908991892646144, 64985125266087385

Offset

1,1

Comments

Column 6 of A224050

Links

R. H. Hardin, Table of n, a(n) for n = 1..34

Example

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

Crossrefs

Sequence in context: A223862 A223985 A224062 * A224279 A224202 A232323

Adjacent sequences: A224045 A224046 A224047 * A224049 A224050 A224051

Keyword

nonn

Author

R. H. Hardin Apr 01 2013

Status

approved