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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
0, 2, 16108, 730983420, 102117302729744, 36724170744914466520, 29526013062983124375791088
OFFSET
1,2
COMMENTS
Column 6 of A264945.
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2015
STATUS
approved