A265422 Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal, vertical, diagonal or antidiagonal neighbors and new values introduced sequentially from 0.

1, 48, 225, 8708, 79026, 2108980, 28314236, 639018151, 10652923659, 224611274898, 4205037878532, 86943916408794, 1731464344049192, 35851466896552009

Offset

1,2

Comments

Row 5 of A265421.

Links

Table of n, a(n) for n=1..14.

Example

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

Crossrefs

Cf. A265421.

Sequence in context: A100146 A235542 A269014 * A211729 A211738 A211749

Adjacent sequences: A265419 A265420 A265421 * A265423 A265424 A265425

Keyword

nonn

Author

R. H. Hardin, Dec 08 2015

Status

approved