A224111 Number of nX3 0..3 arrays with row sums and column sums unimodal

50, 3060, 141112, 5286827, 169786856, 4837645361, 125243425246, 2997702534361, 67199044773027, 1425028874634334, 28814020738905085, 559067607301700698, 10463117115709609406, 189698093216997989976, 3343758094368043618098

Offset

1,1

Comments

Column 3 of A224113

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

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

Crossrefs

Sequence in context: A251058 A239653 A223661 * A047683 A010564 A183689

Adjacent sequences: A224108 A224109 A224110 * A224112 A224113 A224114

Keyword

nonn

Author

R. H. Hardin Mar 31 2013

Status

approved