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A201191
Number of nX4 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease
1
0, 6, 45, 276, 1742, 10723, 62507, 341239, 1756705, 8615033, 40624254, 185606670, 826641108, 3606104752, 15466501406, 65414240653, 273469830394, 1132219841873, 4649478654934, 18961523046357, 76874485386538, 310096854888262
OFFSET
1,2
COMMENTS
Column 4 of A201195
LINKS
EXAMPLE
Some solutions for n=7
..0..0..0..2....0..0..1..1....0..0..0..0....0..0..0..0....0..0..1..2
..0..0..0..2....0..1..1..1....0..0..0..0....0..1..1..2....0..0..1..2
..0..0..0..2....1..1..1..2....0..0..2..2....0..1..1..2....0..1..1..2
..0..1..1..2....2..2..2..2....0..2..1..1....1..1..1..2....1..2..2..2
..2..2..2..2....1..1..2..2....1..1..2..2....1..2..2..2....2..2..2..2
..1..2..2..2....1..1..2..2....1..1..1..1....1..1..1..2....1..1..2..2
..1..1..1..2....2..2..2..2....1..2..2..2....1..2..2..2....2..2..2..2
CROSSREFS
Sequence in context: A003486 A262415 A297645 * A214982 A360021 A189801
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved