A222394 Number of n X n 0..2 arrays with exactly floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order

1, 0, 4, 162, 4644, 1732004, 506779353, 1649738877643

Offset

1,3

Comments

Diagonal of A222402

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A248330 A157463 A041779 * A306350 A125532 A229405

Adjacent sequences: A222391 A222392 A222393 * A222395 A222396 A222397

Keyword

nonn

Author

R. H. Hardin Feb 18 2013

Status

approved