A268047 Number of nX3 0..3 arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order.

4, 159, 9054, 467899, 22309009, 999810316, 42764566838, 1764109373799, 70707661248442, 2768685594929370, 106349114580207849, 4020025709583200998, 149916029504065737481, 5526692782368686983855, 201739654709622213459404

Offset

1,1

Comments

Column 3 of A268049.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 78

Formula

Empirical recurrence of order 78 (see link above)

Example

Some solutions for n=5
..0..0..1....0..0..1....0..0..1....0..0..1....0..0..1....0..0..1....0..0..1
..0..0..2....0..0..2....0..0..2....0..0..2....0..0..2....0..0..2....0..0..2
..0..1..1....2..1..2....0..2..0....0..0..2....1..2..0....0..1..1....2..1..2
..1..0..0....0..2..1....0..3..1....0..2..3....0..3..0....0..3..3....1..3..1
..0..1..1....3..1..0....0..1..0....2..0..0....0..0..3....1..2..2....2..0..0

Crossrefs

Cf. A268049.

Sequence in context: A205156 A268007 A205305 * A278770 A264568 A224044

Adjacent sequences: A268044 A268045 A268046 * A268048 A268049 A268050

Keyword

nonn

Author

R. H. Hardin, Jan 25 2016

Status

approved