A268008 Number of nX4 0..4 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, 3183, 1396408, 700411548, 342829793123, 166704329683286, 80006164995290483, 38077402058848620986, 17980419636054322547231, 8437778507562515075641180, 3938617666912898025748700797

Offset

1,1

Comments

Column 4 of A268009.

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for n=2
..0..1..0..0....0..1..2..2....0..1..2..0....0..0..1..2....0..1..0..2
..2..3..3..0....3..0..0..1....0..1..1..3....3..4..3..3....3..0..1..2

Crossrefs

Cf. A268009.

Sequence in context: A231042 A370300 A283831 * A222922 A268048 A271516

Adjacent sequences: A268005 A268006 A268007 * A268009 A268010 A268011

Keyword

nonn

Author

R. H. Hardin, Jan 24 2016

Status

approved