A268096 Number of 4Xn 0..2 arrays with every repeated value in every row not one larger and in every column one larger mod 3 than the previous repeated value, and upper left element zero.

21, 1323, 83349, 4523326, 231625525, 11291781118, 533496497134, 24638192559193, 1119739461968029, 50302612987674436, 2240926584904643898, 99224887445365781047, 4374082379524633959645, 192196709195804438294930

Offset

1,1

Comments

Row 4 of A268092.

Links

R. H. Hardin, Table of n, a(n) for n = 1..164

Example

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

Crossrefs

Cf. A268092.

Sequence in context: A219408 A250061 A267949 * A281432 A231782 A221733

Adjacent sequences: A268093 A268094 A268095 * A268097 A268098 A268099

Keyword

nonn

Author

R. H. Hardin, Jan 26 2016

Status

approved