A267953 Number of nX3 0..2 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.

4, 96, 1625, 30145, 493087, 8239879, 130870815, 2082478515, 32398824901, 502697528961, 7715771272901, 118070156191861, 1796719487307091, 27277256454891739, 412863240478890453, 6238891286484403929

Offset

1,1

Comments

Column 3 of A267957.

Links

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

R. H. Hardin, Empirical recurrence of order 56

Formula

Empirical recurrence of order 56 (see link above)

Example

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

Crossrefs

Cf. A267957.

Sequence in context: A269091 A204973 A204700 * A206645 A267907 A361965

Adjacent sequences: A267950 A267951 A267952 * A267954 A267955 A267956

Keyword

nonn

Author

R. H. Hardin, Jan 22 2016

Status

approved