A200969 Number of nX3 0..6 arrays with every row and column running average nondecreasing rightwards and downwards

106, 3636, 110854, 3167295, 86468392, 2279060645, 58497330607, 1470248361721, 36345145877004, 886386298107620, 21376162175779039, 510658443459103773, 12100575606121151494, 284720818089996296210, 6658048676892055486889

Offset

1,1

Comments

Column 3 of A200974

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

Some solutions for n=4
..0..0..3....0..0..2....0..0..4....0..0..2....0..0..1....0..0..0....0..0..1
..0..3..4....0..0..4....0..3..4....0..0..3....0..0..4....0..0..4....0..0..1
..0..3..6....3..6..5....0..3..6....0..4..6....0..4..4....0..5..5....0..5..5
..2..4..5....6..6..6....4..6..5....0..6..6....5..5..6....3..3..4....2..3..3

Crossrefs

Sequence in context: A373133 A233047 A206755 * A234413 A083963 A166912

Adjacent sequences: A200966 A200967 A200968 * A200970 A200971 A200972

Keyword

nonn

Author

R. H. Hardin Nov 25 2011

Status

approved