A268143
Number of 3 X n arrays containing n copies of 0..3-1 with every element equal to at least one diagonal or antidiagonal neighbor and the top left element equal to 0.
Original entry on oeis.org
0, 0, 0, 8, 32, 238, 1488, 9778, 91628, 685364, 5183732, 43292440, 341958992, 2698310688, 22015262376, 177423576662, 1428012268840, 11630157575168, 94604167006872, 769682941957332, 6291338814803772, 51481101154395306
Offset: 1
Some solutions for n=4
..0..1..0..2....0..1..2..1....0..2..1..2....0..1..1..2....0..2..0..1
..1..0..2..1....2..0..1..2....1..0..2..1....1..0..2..1....2..0..1..2
..0..2..1..2....0..2..0..1....0..1..0..2....0..2..0..2....0..1..2..1
A268141
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with every element equal to at least one diagonal or antidiagonal neighbor and the top left element equal to 0.
Original entry on oeis.org
0, 3, 8, 672, 5760, 1411560, 25024320, 11908517040, 361147852800
Offset: 1
Some solutions for n=4
..0..1..0..3....0..2..0..1....0..3..3..2....0..3..3..0....0..2..3..2
..1..0..3..2....2..0..1..3....3..0..2..3....3..0..0..3....2..0..2..3
..0..3..2..1....0..2..3..1....1..0..2..1....1..2..1..2....3..1..0..1
..3..2..1..2....2..3..1..3....0..1..1..2....2..1..2..1....1..3..1..0
A268144
Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to at least one diagonal or antidiagonal neighbor and the top left element equal to 0.
Original entry on oeis.org
0, 6, 6, 672, 4734, 177048, 4131792, 132137160, 4330697670, 144754955796
Offset: 1
Some solutions for n=4
..0..0..2..1....0..3..2..3....0..1..1..2....0..3..0..3....0..1..2..3
..0..0..1..2....3..0..3..2....1..0..2..1....3..0..3..0....1..0..3..2
..3..3..2..1....2..0..1..1....3..3..2..0....2..1..2..1....0..3..2..1
..3..3..1..2....0..2..1..1....3..3..0..2....1..2..1..2....3..0..1..2
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