A231323 Number of (n+1) X (7+1) 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

645504, 1607468544, 5132640060000, 15154743446853216, 45929855692690790400, 138493610465688295961184, 418284029768568825937161600, 1263090712888488868089057630816, 3814456862436895259545489736740704

Offset

1,1

Comments

Column 7 of A231324.

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Cf. A231324.

Sequence in context: A159922 A154873 A061406 * A253405 A034628 A014496

Adjacent sequences: A231320 A231321 A231322 * A231324 A231325 A231326

Keyword

nonn

Author

R. H. Hardin, Nov 07 2013

Status

approved