A200772 - OEIS

A200772

Number of nX3 0..2 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

2, 5, 13, 31, 77, 217, 553, 1438, 3849, 9634, 24872, 65658, 165619, 425229, 1108871, 2787741, 7090082, 18273124, 45935694, 116433625, 297919225, 747625324, 1886048964, 4791865798, 11998842755, 30184656867, 76352766306, 190890209361

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A200777

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..99

EXAMPLE

Some solutions for n=4

..0..0..0....0..1..1....0..0..1....0..0..1....0..0..1....0..1..1....0..0..2

..0..2..2....0..2..1....0..0..2....0..1..1....0..1..2....0..1..1....0..0..2

..1..1..2....0..2..1....1..2..2....0..2..1....0..1..2....0..2..2....1..1..2