A265858 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal or antidiagonal neighbor equal to 4-1.

24, 248, 3344, 74416, 1738864, 50328912, 1456019664, 45181803312, 1421341476312, 46016839245584, 1510138127703816, 50328278983229392, 1695238381680705040, 57677827063819616680, 1978346976445491778144, 68351672418547405173760

Offset

1,1

Comments

Row 4 of A265856.

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

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

Crossrefs

Cf. A265856.

Sequence in context: A300397 A211148 A296648 * A282859 A370110 A000594

Adjacent sequences: A265855 A265856 A265857 * A265859 A265860 A265861

Keyword

nonn

Author

R. H. Hardin, Dec 16 2015

Status

approved