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A267995 Number of nX4 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value. 1
250, 62500, 15625000, 3552627426, 766970396055, 158016399692284, 31323853192497584, 6008048043198865162, 1120010376077692767415, 203652957857164291693586, 36224276466386619972386421 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A267997.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..41

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A267997.

Sequence in context: A109121 A253005 A267972 * A201547 A165281 A033449

Adjacent sequences:  A267992 A267993 A267994 * A267996 A267997 A267998

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 24 2016

STATUS

approved

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Last modified April 4 21:25 EDT 2020. Contains 333238 sequences. (Running on oeis4.)