A268162 Number of 5 X n arrays containing n copies of 0..5-1 with every element equal to at least one vertical or antidiagonal neighbor and the top left element equal to 0.

0, 0, 456, 23592, 10213152, 871718016, 131259920304, 22870582657920, 3420936792374976

Offset

1,3

Comments

Row 5 of A268159.

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Cf. A268159.

Sequence in context: A200784 A077578 A329756 * A223750 A048110 A282101

Adjacent sequences: A268159 A268160 A268161 * A268163 A268164 A268165

Keyword

nonn,more

Author

R. H. Hardin, Jan 27 2016

Status

approved