A267907 Number of nX3 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

4, 96, 2304, 43972, 754852, 12017350, 181535822, 2638824216, 37263580006, 514648921140, 6985835894832, 93540620739538, 1238999184320608, 16269402566811754, 212148448282604414, 2750808905345217294

Offset

1,1

Comments

Column 3 of A267911.

Links

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

R. H. Hardin, Empirical recurrence of order 54

Formula

Empirical recurrence of order 54 (see link above)

Example

Some solutions for n=4
..0..1..1....0..0..1....0..1..2....0..1..1....0..0..1....0..1..2....0..1..2
..2..2..1....2..1..1....2..1..2....1..0..0....0..0..1....1..0..0....0..1..1
..1..0..2....2..1..0....1..0..2....2..0..1....0..1..1....1..2..0....0..0..2
..2..0..1....0..2..1....2..1..0....0..0..2....0..0..2....2..1..0....0..2..2

Crossrefs

Cf. A267911.

Sequence in context: A204700 A267953 A206645 * A361965 A221148 A317664

Adjacent sequences: A267904 A267905 A267906 * A267908 A267909 A267910

Keyword

nonn

Author

R. H. Hardin, Jan 22 2016

Status

approved