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.

12, 2191, 381958, 70985206, 12341773443, 2135811945390, 360625109847257, 60269655478497862, 9949083335191755757, 1629156960066795552208, 264820932563055654137153, 42807217788424085785910968

Offset

1,1

Comments

Column 4 of A268073.

Links

R. H. Hardin, Table of n, a(n) for n = 1..43

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

Adjacent sequences: A268068 A268069 A268070 * A268072 A268073 A268074

Keyword

nonn

Author

R. H. Hardin, Jan 25 2016

Status

approved