A266016 Number of 6 X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.

1, 2, 46, 21, 182, 473, 2208, 10811, 27582, 48585, 208339, 806888, 2237613, 6433915, 22022952, 71222578, 219977583, 693774602, 2233917079, 7010859820, 22060191860, 70127041695, 222915784604, 703615380451, 2225669737764, 7048059985007

Offset

1,2

Comments

Row 6 of A266012.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A266012.

Sequence in context: A100101 A332244 A090601 * A071777 A179108 A158960

Adjacent sequences: A266013 A266014 A266015 * A266017 A266018 A266019

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved