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A267972
Number of nX4 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
1
250, 62500, 12067722, 2208460532, 370962601314, 58977586280183, 8920181825287255, 1295459314730053526, 181620283990314798496, 24698703052360112375559, 3269943855458863743367027
OFFSET
1,1
COMMENTS
Column 4 of A267974.
LINKS
EXAMPLE
Some solutions for n=2
..0..1..0..3....0..1..0..0....3..2..1..1....2..0..3..0....0..3..2..0
..3..1..3..0....0..3..1..2....2..3..2..2....0..3..2..1....1..2..2..0
CROSSREFS
Cf. A267974.
Sequence in context: A249321 A109121 A253005 * A267995 A201547 A165281
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved