A200826 Number of nX3 0..5 arrays with every row and column running average nondecreasing rightwards and downwards

69, 1630, 33540, 642953, 11757774, 207535740, 3568229516, 60064451704, 994081203872, 16221664901551, 261576061692669, 4174923985695564, 66040940309213362, 1036456712144381487, 16152737625133763191

Offset

1,1

Comments

Column 3 of A200831

Links

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

Example

Some solutions for n=4
..0..0..0....0..0..0....0..0..1....0..0..0....0..0..1....0..0..0....0..0..1
..0..1..2....0..2..3....0..1..1....0..1..2....0..1..3....0..0..0....0..2..3
..0..4..2....2..2..5....0..3..3....0..2..1....2..3..4....1..5..5....3..3..5
..1..3..5....3..5..4....3..3..4....2..5..5....3..5..5....1..3..3....3..3..5

Crossrefs

Sequence in context: A295212 A264283 A333034 * A359105 A133708 A253334

Adjacent sequences: A200823 A200824 A200825 * A200827 A200828 A200829

Keyword

nonn

Author

R. H. Hardin Nov 23 2011

Status

approved