A264944 Number of nX6 arrays of permutations of 6 copies of 0..n-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

0, 2, 16108, 730983420, 102117302729744, 36724170744914466520, 29526013062983124375791088

Offset

1,2

Comments

Column 6 of A264945.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A264945.

Sequence in context: A297573 A346566 A159730 * A242855 A367123 A214544

Adjacent sequences: A264941 A264942 A264943 * A264945 A264946 A264947

Keyword

nonn

Author

R. H. Hardin, Nov 29 2015

Status

approved