A268095 Number of 3Xn 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.

8, 192, 4608, 98830, 2028304, 40109966, 774613334, 14704721628, 275789779530, 5127593717314, 94736825794120, 1742377742866910, 31939206633903848, 584056036861579428, 10661467774391724330, 194364960910265681074

Offset

1,1

Comments

Row 3 of A268092.

Links

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

Example

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

Crossrefs

Cf. A268092.

Sequence in context: A267948 A339487 A189537 * A058873 A052734 A003435

Adjacent sequences: A268092 A268093 A268094 * A268096 A268097 A268098

Keyword

nonn

Author

R. H. Hardin, Jan 26 2016

Status

approved