A201829 Number of n X n 0..3 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally

4, 50, 1629, 135236, 29732625, 17998651651, 31002396811493

Offset

1,1

Comments

Diagonal of A201836

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A349655 A173218 A234714 * A201209 A026865 A016078

Adjacent sequences: A201826 A201827 A201828 * A201830 A201831 A201832

Keyword

nonn

Author

R. H. Hardin Dec 05 2011

Status

approved