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A268023 Number of nX4 0..2 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value. 1
78, 6084, 295962, 13530274, 528293442, 19177213020, 642612340592, 20358126145678, 612589053437088, 17674943525434667, 491314996740768425, 13223822255444331592, 345845237074776797318, 8816893125592668315273 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A268026.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..168

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A268026.

Sequence in context: A276177 A093278 A328354 * A268016 A077694 A119216

Adjacent sequences: A268020 A268021 A268022 * A268024 A268025 A268026

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 24 2016

STATUS

approved

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Last modified February 2 05:15 EST 2023. Contains 359997 sequences. (Running on oeis4.)