A264949 Number of 6Xn arrays containing n copies of 0..6-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

1, 6040, 43200625, 368696849320, 3537141103745065, 36724170744914466520

Offset

1,2

Comments

Row 6 of A264945.

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=2
..0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1
..2..3....2..3....2..0....1..0....2..3....2..0....2..3....2..3....2..3....2..1
..3..4....4..5....3..4....2..3....4..1....2..3....4..2....2..0....0..4....3..2
..1..5....4..0....4..5....2..4....5..3....4..1....4..3....4..1....5..2....0..3
..5..0....5..1....5..1....4..5....0..4....5..3....5..0....5..3....3..5....4..5
..2..4....2..3....2..3....3..5....5..2....5..4....1..5....5..4....1..4....5..4

Crossrefs

Cf. A264945.

Sequence in context: A064248 A202895 A157652 * A237961 A362954 A175160

Adjacent sequences: A264946 A264947 A264948 * A264950 A264951 A264952

Keyword

nonn

Author

R. H. Hardin, Nov 29 2015

Status

approved