A265194 Number of 4Xn arrays containing n copies of 0..4-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

1, 36, 774, 20592, 583806, 17355854, 531710144, 16794345016, 539934522405, 17688694779704, 587032342194893, 19721653849177246, 669000415874942986, 22891346830054677219, 789053202525296020838, 27375922414889330681650

Offset

1,2

Comments

Row 4 of A265192.

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Cf. A265192.

Sequence in context: A320821 A144941 A036084 * A280123 A004338 A228331

Adjacent sequences: A265191 A265192 A265193 * A265195 A265196 A265197

Keyword

nonn

Author

R. H. Hardin, Dec 04 2015

Status

approved