A265171 Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal or vertical neighbors and new values introduced sequentially from 0.

1, 186, 40476, 10723968, 3152470670, 995141926013, 330443561580215, 113954535526102076, 40466434693734970267

Offset

1,2

Comments

Row 5 of A265170.

Links

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

Example

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

Crossrefs

Cf. A265170.

Sequence in context: A206515 A366488 A299830 * A146502 A231055 A068257

Adjacent sequences: A265168 A265169 A265170 * A265172 A265173 A265174

Keyword

nonn

Author

R. H. Hardin, Dec 03 2015

Status

approved