A202164 Number of nX4 0..3 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease

0, 44, 752, 11710, 179588, 2676343, 37614057, 496039542, 6176635954, 73211917384, 832641681945, 9146427567379, 97573114351695, 1015378460456711, 10345210681787046, 103510312417606382, 1019668421787231138

Offset

1,2

Comments

Column 4 of A202168

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

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

Crossrefs

Sequence in context: A282860 A232139 A296576 * A231128 A297605 A297083

Adjacent sequences: A202161 A202162 A202163 * A202165 A202166 A202167

Keyword

nonn

Author

R. H. Hardin Dec 13 2011

Status

approved