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A201340 Number of nX2 0..4 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease 1
0, 0, 15, 213, 2007, 15497, 106589, 680287, 4118949, 23981337, 135473879, 747163898, 4040984182, 21504391182, 112888169123, 585765427216, 3009175376793, 15324419276531, 77445651022458, 388752941316532 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 2 of A201345

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..96

EXAMPLE

Some solutions for n=6

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

..0..1....1..3....2..2....1..2....2..2....0..2....0..1....0..0....0..0....2..3

..3..4....2..4....1..4....2..2....1..1....0..1....3..4....3..3....2..2....1..3

..1..2....4..4....1..3....2..4....1..4....1..4....1..2....1..2....3..3....4..4

..2..2....2..3....4..4....4..4....1..2....4..4....1..4....3..4....3..4....3..3

..2..4....2..4....2..3....3..3....1..2....3..3....4..4....4..4....2..2....2..4

CROSSREFS

Sequence in context: A252875 A135519 A179091 * A051826 A081196 A020287

Adjacent sequences:  A201337 A201338 A201339 * A201341 A201342 A201343

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 30 2011

STATUS

approved

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Last modified August 4 14:04 EDT 2020. Contains 336201 sequences. (Running on oeis4.)