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A267995
Number of n X 4 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
OFFSET
1,1
COMMENTS
Column 4 of A267997.
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2016
STATUS
approved