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A268071
Number of nX4 0..3 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.
1
12, 2191, 381958, 70985206, 12341773443, 2135811945390, 360625109847257, 60269655478497862, 9949083335191755757, 1629156960066795552208, 264820932563055654137153, 42807217788424085785910968
OFFSET
1,1
COMMENTS
Column 4 of A268073.
LINKS
EXAMPLE
Some solutions for n=2
..0..1..0..1....0..0..1..2....0..0..1..0....0..1..2..2....0..1..1..0
..1..0..1..1....0..2..0..3....2..3..1..1....0..1..3..0....1..1..0..1
CROSSREFS
Cf. A268073.
Sequence in context: A177069 A204681 A205157 * A205306 A268421 A129206
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 25 2016
STATUS
approved