A200851 Number of n X n 0..4 arrays with every row and column running average nondecreasing rightwards and downwards

5, 105, 8535, 2604826, 3001883019, 13079416454738

Offset

1,1

Comments

Diagonal of A200858

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A114481 A273962 A223043 * A203471 A015002 A059490

Adjacent sequences: A200848 A200849 A200850 * A200852 A200853 A200854

Keyword

nonn

Author

R. H. Hardin Nov 23 2011

Status

approved