A201229 Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

6, 2, 34, 24, 306, 152, 2697, 1709, 26353, 14274, 256132, 155679, 2577102, 1435626, 25812024, 15341134, 262850473, 148007489, 2677750617, 1572346141, 27580713570, 15652657223, 284558852486, 165998453918, 2956634276151, 1686097239526

Offset

1,1

Comments

Column 2 of A201235

Links

R. H. Hardin, Table of n, a(n) for n = 1..82

Example

Some solutions for n=10
..0..0....0..1....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0
..0..0....0..1....0..0....0..0....0..1....0..0....0..0....0..0....0..1....0..1
..0..2....0..1....0..1....0..2....0..2....0..1....0..2....0..3....0..2....0..1
..2..2....0..1....1..3....1..1....0..1....1..1....1..1....1..1....0..1....0..3
..3..3....0..3....1..1....1..1....2..3....2..2....1..2....1..3....1..3....2..2
..1..3....2..2....1..3....1..3....3..3....1..3....2..3....1..3....3..3....1..2
..1..2....3..3....2..3....2..3....2..2....2..2....1..2....2..2....2..3....3..3
..1..3....2..3....2..2....3..3....1..2....1..2....1..2....1..3....1..2....2..3
..1..2....1..3....3..3....2..3....1..3....3..3....3..3....2..3....2..3....1..3
..1..3....2..2....2..2....2..2....1..3....3..3....3..3....2..2....1..2....1..2

Crossrefs

Sequence in context: A362989 A191703 A096039 * A038256 A373829 A242529

Adjacent sequences: A201226 A201227 A201228 * A201230 A201231 A201232

Keyword

nonn

Author

R. H. Hardin Nov 28 2011

Status

approved