A223799 Number of nX6 0..3 arrays with rows and antidiagonals unimodal

610, 372100, 131295500, 37217420249, 9658691177678, 2401987689157097, 584566278788358762, 140706704179577280652, 33682261034207872011248, 8040572062005220287891916, 1916764185795334806820505504

Offset

1,1

Comments

Column 6 of A223801

Links

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

Example

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

Crossrefs

Sequence in context: A223760 A223848 A223874 * A323281 A214855 A072323

Adjacent sequences: A223796 A223797 A223798 * A223800 A223801 A223802

Keyword

nonn

Author

R. H. Hardin Mar 27 2013

Status

approved